Indian Telecom companies block Cloudflare Warp+ from accessing Cloudflare servers to create a tunnel in India, which makes using ISPs like Jio or Airtel a pretty bad experience. With Jio I would usually get Singapore co-location. Then on the other hand Excitel gets me a Co-location in Delhi for Warp+ with almost no difference in speed.
That's why I use local ISPs whose primary focus is not deep packet inspection but delivering the speeds they lease from larger ISPs like Airtel and Jio. While they do censor some content, such as TikTok and certain banned websites like Pornhub, they don't block sites like The Pirate Bay or similar ones. Additionally, they don't perform deep packet inspection and provide low latency like 13ms which is pretty good.
Yup i get it from drom local cable service provider and its awesome and he is always available for any issues that arises unlike jio or airtel where its a total mess
Not really 10-15 year's ago they were frustrating but they have matured a lot atleast in some areas, sometimes mcd cuts their wire of the poles too lol. This year was flawless for me. I also have My private router so no bridging hassles more secure as I have static
This is a very common thing on when Jio is the ISP in my small scale testing They like to block stuff without any rhyme or reason, this is one of the reasons why I always have vps active in azure central india location with ovpn and kasm active so that I can either connect via vpn or ssh or use kasm to launch a private browser instance and do the shit I was trying to do. azure has their own dedicated link from pune to undersea cables, this also has the benefit of being able to get around "govt censorship" as claimed by Jio on movie streaming websites, which are enforced only by Jio for some reason(same websites via airtel are accessable)
Exactly. My university uses Jio as their broadband provider and with University restrictions (which can be bypassed using GoodByeDPI), and Jio on top. Is a very shitty experience.
Same happens to me in Gujarat when I'm trying to access Google Photos in my browser for some reason. It's something particular with the Gujarat ISP maybe
Faced the same issue while I was in Gujarat, WARP seems blocked there and you get Co-location center from France and sometimes UK, Currently now in Maharashtra and WARP working clean here 5ms to Bombay server at the moment.
Check TCP MTU and MSS. Noticed a similar issue connecting to Akamai CDN through some of the large ISPs. Somewhere there is a BGP router or CGNAT router in between having TCP MSS and MTU not configured correctly on the outgoing / incoming network interface, that misconfigured router is not reassembling fragmented TCP packets while leaving it to the next router. Also CDN nowadays puts some sort of packet scrubbing to mitigate TCP reply and fragmentation attacks.
I am too getting into networks. How do you get into the details without pivoting towards network engineer role. I am a backend software dev but I want to delve into the depths of routing
@@siddhantchavan1370I tinkered with some opensource firewalls and Linux routing while setting up my very own network and kubernetes cluster at my home lab. I was curious from my childhood to know the nuts and bolts of the internet ecosystem. So now I have my own network with an Autonomous System, Public IPs and I am a member of RIPE. I started my own experimental research network with my AS203145 and now I expanded it from the cloud to my home.
@@siddhantchavan1370knowing some of the networking stuff and os stuff (socket programming, IPCs, etc.) really helps backend developers to write code for large scalable systems. By profession I am a developer too but I always have this kind of tinkering hobby aside.
For ISP I recommend having two different connections. I understand that getting two fiber connections might not be possible for small scale but having at least a second connection dedicated to the server. Considering that ISP fiber connection provides 90% uptime average in india so having a second low cost setup will be helpful and a Different ISP means a different routing network which will be helpful in these situations.
A simple restarting all the network stuff will be helpful for resetting network route to best connectivity(I had faced similar problems in the past and this was the simplest thing I personally doing for better connectivity)
Some ISPs have firewalls that cause problems like this. I'll give you an example, I live in Kashmir and here Jio has a firewall in place, it works good for the most part but if i open slack, I'm not able to join meetings sometimes or sometimes media doesn't load. Sometimes even the API's that I'm testing keep failing. But when I switch to my other wifi connection by BSNL, everything works flawlessly.
you can also ask the user to check the cf server location by asking him to go learn.coders..../cdn-cgi/trace also if you use warp+ then speeds aren't affected it's some heavy messup with Airtel, Jio routing
The best troubleshooting should be done is connect him with his mobile network which has different ISP because ISP routers uses BGP protocol to connect to the hops and different isp use different types of QOS mechanism to priotize the traffic, If you look clearly your html and css images are loading fast but when it comes to video it sucks but they are having different QOS mechanisms.
I also have this issue, I used to cloudflare regularly before but now the internet speed of my device is significantly slower when use cloudfare. Thats why I left cloudflare.
@@parthbhardwaj4279 hey but what is the usecase of this cloudflare vpn in your case..as in using unreachable websites or anonymity or something else entirely ?
Our isp's just block cloudflare subdomains because some people use it as bug host and this specific problem occurs more in jio than airtel and than maybe vi.
Since the user was able to access the same website using different internet medium, it is most likely MTU issue. Try changing the interface's (e.g eth0) MTU to values like 1300, 1250, 1200 or lower and play with different values.
I used to host my own VPN at some Mumbai based VPS and that used to solve all my routine based latency issues for me. Because the ISPs would "provide" good speed, but in reality it would have terrible routing and most sites would be extremely slow.
This appears to be a throttling or peering issue between the specific ISP and the CDN. It could also result from data inspection or filtering on the CDN's side or the ISP's network, causing delays. While using a custom route table might offer a solution, it would involve significant effort and fine-tuning to define effective custom routes.
it's probably somehow ISP problem. whenever i update my system threw via my Jio 5G network it's provide 1 KB to 100 KB speed but in youtube i can watch video & stream 1080p60, when i change to Vi 4G network it's speed like 500 KB to 2 or 4 MB speed sometimes it's like 6 MB idk why ?
I would also try changing the dns to any good private dns (nextdns or cloudflare dns) , few isps use their nonsense dns resolvers which screws up routing . i would recommend that Private Dns must be enabled at both router level and device levels hope the issue gets resolved with this
DNS is likely not the issue here. DNS only does domain name to IP address conversion which happens just fine. The problem is the data transfer is very very slow which is not the responsibility of DNS
TLDR, before I switch to my Unbound DNS. My outlook web was working. Did some test Unbound DNS and Cloudflare DNS is resolving a different address to Microsoft cdn. Unbound is giving me an address with bad routing I guess. Some reading also point me to EDNS not being supported back then for Unbound, thus it is giving me an address with bad routes.
I'm not sure about this, but this happened to me on multiple instances where switching the network works, or changing the DNS works. Incident 1: Sanity CMS dashboard kept loading Contentful homepage kept loading Resolved by changing dns Incident 2: I coded and deployed a website and assigned a custom domain (godaddy), the website was live on the domain as viewed from other networks, but not particularly my WiFi. I dug into this behaviour and back then I came to know that either WiFi routers or somewhere in the hop stream devices cache the route. The config could have changed somewhere and the cache didn't revalidate yet. It has a fixed refresh time and it works once that happens. This incident mentioned in the video closely resembles my experiences.
@@codedamn should try to traceroute on the affected pc and try pinging ips which could tell u that it is a dns problem or i think ur right that it might not be a dns problem, and ip while pinging that has the highest wait time is the culprit then u can investigate further
ISP issue definitely. I had similar issue where Netflix and some parts of Amazon websites (prime, aws) were not loading but everything else is working fine. Contacting my wifi provider resolved it, they took my router and changed some internal id and it started working fine.
I have having this problem with jio 4g for around more than a year, some apps and websites just didn't work with jio, earlier i used to solve this problem by turning on cloud flare, today i was booking a cab, the speed was slow, then turned on cloudflare warp, nothing worked, checked youtube it was working fine, whenever i recharged jio i faced problem with some or other site always, the other sim i have is Vi, which works perfectly fine for all websites and apps
As far as I've noticed, ISPs using jio's DNS systems cause issues with cloudflare. I noticed 3 ISPs with this and 2 without and the issue happened as I described
I thought it was just me but having routing issues for more than 4 months now !! its frustrating as my local ISP doesn't know about these errors and label them as "UNIQUE ERRORS" !!
It's not the ISPs, it's the cloudflare which has very bad peering with Indian ISPs. Most of the time you will end up connecting route node outside India and thus the packets route across the glove before it reaches you. Their anycast often results into flooding origin server if timeout happens. There's only one solution : All users must push CF to fix their peering with ISPs. There's some bad routing involved and node selection algorithm is performing quite bad. There might be another reason where they are deliberately doing it to extract data, most selected nodes are strategic locations where data processing laws are not strict so there is another angle to why CF might be doing it. There's surveillance possibility involved by non Indian companies and that's a real issue.
ISP's in India makes VPN connections extremely slow, also some sites keep breaking with a particular ISP everytime, but works with another ISP... It's makes internet experience pathetic sometimes...
If it's a local isp then that should be the problem IMO. Coz I have experienced like this with Google meet while attending a class. In my case same was happening after switching to mobile data the issue was not happening. It happens with specific website or service.
Had similar kinds of issues multiple times some of our website users not able to play videos from Vimeo cdn . I think it also affects Google sign-in for some people
Since Cloudflare has nearby servers based on locations, could it be that the Cloudflare server that people from Gujarat are using has a problem and not from Bangalore? That would explain why WARP slows down things for him.
We are also facing a similar issue with cloudflare, but we found that the issue was only faced by the user with Jio network connection and not by the users using other ISPs. I am from Gujarat, by the way.
it is crazy how our eyes light up when the problem is far our reach, and you know that there is lots of knowledge to be achieved if you get to solve it! reasons i love software eng!!
1. Have you told him to reset their router setting , may be there is some rules and routing set by him or someone 2. Have he tried on different devices or different pc/laptop. 3. He can also see if there is custom dns set by him or their is default dns may be try to change it to some other dns services. 4. (If not sure about the connection and pc setting ) I would route my wifi through mobile acting as repeater having both wifi and hotspot on,mobile wifi is connected to router and pc to mobile hospot. Just to check flakkyness of the connection settings.
@@xtan-io I have seen whole video, and I am not that free to just write random thing. It personally happended to my user, He added certain rules and script on router to block ad and trackers.
I don't think it's possible to use phone as a repeater. Once it's connected to wifi, how can it be a router at the same time. That's a hardware limitation.
This is so weird that I'm having this exact problem, but with entirely different ISPs and products. I'm trying to connect to a work VPN hosted in another country. Trying to connect to this VPN and using the remote system while on a residential ISP, it'll always route me through a server that has consistently high ping (230-300ms). I have to disconnect and connect multiple times in order to force myself to connect using a faster path. However, the moment I switch to a different ISP, the problem vanishes and I'm able to connect 100% of the time with pings around 100-110ms. Funnily enough, this residential ISP problem only occurs in the town I live, and whenever I move to a different city and use the same ISP from there, the problem does not occur.
Mere isp ne mera hi website block kar diya tha mai socha mera website down kyu ho Raha hai pahale hosting dekha sab running condition me tha phir VPS check kiya wo bhi running me tha phir samjh gaya ye mere ISP ka kand hai..
Understand ur problem this happen bcos of cloudfare as they are using automated tool to identify the optimal routing path. Reverse traffic sending towards the ISP. Many time the path choosen are not optimal and need alternate path but automated tool understand this as best path bcoz of all the parameters configured are found ok... which may not be the best. And still keep sending traffic on the wrost path.
I use airtel and I too noticed this problem when accessing Udemy. My neighbour using a local ISP gets a flawless access to this site and every others, I'm planning to switch to that soon. Also the customer service provided by airtel or jio is subpar.
This is such a nice video, so much important information is presented in a easy to understand method in under 15 minutes. also thanks for showing the real problem users face everyday
I think the problem is ISP sharing multiple connections on a single public IPv4 (I know that ACT does this and would be similar for small scale ISPs) and as a result, Cloudflare can throttle requests thinking the public IP as a spammer (since multiple customers have same public IP)
This happens on the reliance internet. Not just gigafiber but with mobile internet as well. My research also directed me towards disabling the ipv6 in cloudflare, but being a free user I could not do it.
I am not sure, but is this the reason why I cannot access some sites, like steam community page would just show me Error code 118 and it's impossible to download anything via the Xbox app and to play any sort of online games. Using mobile data is much better than the broadband internet I have. Recently, from marvel rivals, I saw that the latency from my router to ISP was around 70ms and then ISP to the server was only 20ms. I have tried changing the internet provider (because the same ISP supports multiple providers) and the issue still exists. It's quite annoying.
yep being network security guy the bgp or CGNAT routing are ok but i have sometime notices the tcp MSS (maximum segment size ) and MTU (Maximum transmission unit) has gone lowed for sometimes also the thier is lot of tcp retransmission and dupack in packets i saw in wireshark .I also heard from isp that sometimes the tcp mss becomes low so they have to seta particular value on both sides of receiver and sender for example liek 1460 but due to additionl protocols like TLs the size may increase and more fragmentation may needed for the packet hence more reload time to get the webpage on the device .
Very same thing is true with Flight simulator we are building in Ahmedabad.. Its ISP fault. We have changed multiple routers, modems everything in between!
when did this happen ? since about 2-3 days i am getting weird speed issues only on some domains. I am using jio fiber. And its even worse today, i am having to use warp for decent experience. Interestingly, even last year i faced such problems around this month.
This is the reason why i switched to aws instead of using cloudflare rds. I was using jio and spent the whole day debugging code, only to discover that using a vpn solved my problem. Then i switched to aws even though it might be more expensive. No hiccups from there.
Looking at this without having the opportunity to run traceroute and pinging individual nodes to identify the latency and packet drop, I would say the issue is probably in one of the exit nodes which route the traffic. I'm not an expert in Network Architecture so take it with a grain of salt, I'm hypothesizing that the exit nodes might have some throttling based on route and cloud flare being widely used might be getting throttled or the resources at the exit nodes might be bad. These are owned by TRAI if I'm not wrong or in some cases leased to bigger ISPs by TRAI for maintaining the infra. Usually the work around is to build redundancy but not sure how effective these are. One question I would ask the customer is if they're seeing any increase in performance during non-peak hours like middle of night to rule this hypothesis out.
I am from Gujarat, we are using on premise hosted Application (Web and Mobile). As per the observation mainly the Jio Users are facing this issue. Rest all users can access the application with proper speed.
Once i had an issue with CODM, its not connecting over Netplus Wifi. While analysing network packets i got suspicion on DNS servers of concerned ISPs. Indian ISPs(fiber bb) have a bad habit of switching old customer to low performance/bad DNSs servers. Run the tracecert command on the affected node. For inspection you can also use TOR.
i have same problem with my server, the issue is from ISP, it not able to serve some site or ip for few secs, it generally happens with BSNL, Airtel and GTPL (spl in gujarat). At that time speed test and youtube will be working fine.
The Cloudflare and Indian ISP part is heavily discussed. Cloudflare is faster if you're using their premium services and not just free CDN, Argo being one of them. Big ISP wanted cloudflare to pay for the traffic so to balance cost unless the domain is premium they don't use premium peering for the most part. It's a Cloudflare and ISP issue.. I'd suggest move to Bunny CDN if DNS and CDN is all you want.
There could be a firewall issue. To troubleshoot we need another pc to have the warp installed is same on both pc in both wifi and hotspot situation then it could be due to upnp or port forwarding. My ps5 remoteplay doesnt work with jio but i was able to make configs to allow certain traffic via jio router to make thar possible.
I have jio fiber in Mumbai and this problem is very common. Recently it has become worse. Many sites/teams dont work as expected. I switch to Airtel hotspot and it starts working immediately. I can't even complain because the problem is intermittent so i can't reproduce the issue when the technician comes. Sometimes I switch on the VPN to bypass the issue.
If removing cloudflare fixes it then it's definitely cloudflare problem. If route has similar or same nodes, then it could be a problem with one of those nodes. If nodes are changing, then see what node remains constant to narrow down the faulty system.
ISP issue i also faced with jio in pune it keep cancel my SSH connection with anyserver then i use wrap it work or when i move different city it worked
I am using Airtel Air Fiber connection (100Mbps) and when I use my company VPN the speed drops to few Kbps. The issue is with the Airtel Air Fiber only. I didn't had this issue with Jio Air Fiber, Airtel Fiber connection nor mobile data(VI). I am unable to work with my work VPN.
This issue has increased significantly in JIO after they implemented the CG-NAT. On top of that, changing DNS doesn’t work with them, it’s not stable. There are high chances that the issue will be resolved when the IP gets refreshed ( In there technical teams words ). Airtel, Excitel performs really good with minimal DNS change.
ISPs dont assign public IP to individual connection. All connections in a building are on Private IP behind a single public IP address. So if there’s any issue with that IP routing than we are simply f’ed. Airtel’s implementation of this CG-NAT is far better than JIO.
This is a common problem with small scale ISPs I believe. For years I have been using a small ISP (available in my area, WB) and often it would be slow for some websites / apps but whenever I switched to mobile data it would be work all good. Another observation I have, if I switch connection from mobile to wifi AFTER I open the app/site it would generally behave better. Yeah definitely a trashy experience. What's the point of 80mbps data when it struggles on basic stuff.
Was the guy using GTPL as ISP, they are using some old dns and filters which sometimes blocks or really slow down speed to KBs. Simple solution could be just change router dns to opendns or Google dns or cloudflare and you would be good to go.
The issue seems to be because of the contention at peering facilities like Internet Exchange . We were facing same issue and we also have bilateral peering with cloudflare. The problem was fixed after reporting to the Internet exchange. There was also a partial routing issue at some locations which cloudflare had published.
I'm facing a strange issue to: during a Dockerfile build, one of the npm ci commands fails. However, if I log into the container and run the same command manually, it works. Interestingly, it also works fine when using a different ISP. I've spent hours trying to figure out why it's failing and where the issue lies.
ISP messing up routing table is a common thing. I had similar expirence with BSNL, but it was an issue specific to me. But the customer service agents are not technically inclined so they don't understand what I am trying to say. I even pinpointed their exact failure point. I don't think this is limited to India most countries have this issue. Also try ipv6, normally routing of ipv6 is better as it uses SLAAC so RIP can work directly as there is no NAT in normal use case.
I get this 3000ms ping spike every 2 minutes, when playing Valorant and CS or any online game every 2 mintues I freeze for 3 seconds. It's very frustrating.
Get the traceroute from the user system via wifi and hotspot towards the cloudflare ip manually verify all the hops and identify the one with highest latencies see whom that belongs to inform the ISP about that. ISPs forward their load based on the traffic like aws facebook cloudflare akmai etc bigger players in the market and put that load on other ISPs infra and sometime there routes our cables are too crowded and not monitored properly which causes these latencies.
Its probably with the ISP. Airtel is notorious to have intermittent connection issues with AWS US region endpoints. Its so difficult to convince client or even your colleagues!!
experiencing similar, user might be on Jio's network stream, coz am on Jio and facing similar issue with cloudflare servers, facing packet loss like 30% on the routing to cloudflare, changing dns isn't working, only using VPN works. Websites doesn't load or doesn't load after opening. Contacting either provider to change routing or informing cloudflare about the routing will only work. The issue usually starts appearing at peak hours.
i do also believe that there is some issue with ISP in Gujarat because i am also enable to visit VLC media player website and if i connect to my phones network then i am able to access the website.so i guess there must be some issue.
Shouldn't traceroute help you figure out the exact server causing problem ? And maybe the IP address be used for contacting the server owner ? Not sure on the 2nd part.
If he's using Airtel wifi then yeah, there are some issues I had a call with the customer care and they said the network will be resolved shortly. It's been almost 2 weeks and not resolved yet
I faced the same issue with my ISP, I have been battling with them for almost an year and I just gave up, the moment I connect to cloudflare warp, the speed just goes down to < 1Mbps. (I do not have a solution and neither the ISP).
I don't know if it's related or not JIO (always) & Vi (sometime) users are not able to join Minecraft game server hosted in India & Singapore. If they use some VPN or cloudflare's warp they are able to join. Never got this complain from Airtel user ever. I think there is problem from where ISP is getting service
these 5s and 10s delays are nightmares i've had to deal with for a couple of years now.. simple cloning of a git repo with submodules takes forever because for every enquiry to download then to enguire takes a whole 25secs minimum..weirdly, it only happened on linux exclusively and never saw anything like it on windows.. guess what, switching to cloudflare dns and disabling ipv6 was the only way i could maintain the stability and keep the latency low like i have been promised by the ISP (and it's still at 30ms btw..) the customer service is a pathetic joke.. airtel xstream fiber..
Do you have only one client using this ISP? (Local ISP maybe?) Could also be a wifi router problem at the user's home... Also...Sometimes I experience these issues on public wifi spots (not in India yet) which block certain IP ranges or naked IP communication in general.
Indian Telecom companies block Cloudflare Warp+ from accessing Cloudflare servers to create a tunnel in India, which makes using ISPs like Jio or Airtel a pretty bad experience. With Jio I would usually get Singapore co-location. Then on the other hand Excitel gets me a Co-location in Delhi for Warp+ with almost no difference in speed.
What is Excitel? And how do you still use warp+? I had a few hundreds of GBs in WARP+ but now it shows no data
Mine always either gets connected to Singapore or Mumbai
@@nirbhaykumarchaubey8777 Excitel is internet service provider in delhi .
Excitel is also an ISP with fiber connection
Excitel Is the cheapest option. They have 3rd party contracters
That's why I use local ISPs whose primary focus is not deep packet inspection but delivering the speeds they lease from larger ISPs like Airtel and Jio. While they do censor some content, such as TikTok and certain banned websites like Pornhub, they don't block sites like The Pirate Bay or similar ones. Additionally, they don't perform deep packet inspection and provide low latency like 13ms which is pretty good.
Yup i get it from drom local cable service provider and its awesome and he is always available for any issues that arises unlike jio or airtel where its a total mess
true , my isp doesnt even know about latency and packet loss fixes
Yeah, like sometimes games like Valorant or pubg/bgmi don’t open on jio
@@sandeshverma214
Lol
Indian ISPs are more after money and the local ISPs are more frustrating.
Not really 10-15 year's ago they were frustrating but they have matured a lot atleast in some areas, sometimes mcd cuts their wire of the poles too lol.
This year was flawless for me.
I also have My private router so no bridging hassles more secure as I have static
This is a very common thing on when Jio is the ISP in my small scale testing
They like to block stuff without any rhyme or reason, this is one of the reasons why I always have vps active in azure central india location with ovpn and kasm active so that I can either connect via vpn or ssh or use kasm to launch a private browser instance and do the shit I was trying to do.
azure has their own dedicated link from pune to undersea cables, this also has the benefit of being able to get around "govt censorship" as claimed by Jio on movie streaming websites, which are enforced only by Jio for some reason(same websites via airtel are accessable)
Exactly. My university uses Jio as their broadband provider and with University restrictions (which can be bypassed using GoodByeDPI), and Jio on top. Is a very shitty experience.
this same thing is happening with me in Airtel 😂
which language u are speaking in
@@code4js english
brother explain how to do what you do cause what you typed goes above many brains 😭
I am guessing the ISP user is using is Jio, I experienced that its routing are messed up.
same as you, I'm also unsure about the problem but even my ISP had issues 2 days back and got it resolved after few hours. I'm from Gujarat basically.
Same happens to me in Gujarat when I'm trying to access Google Photos in my browser for some reason. It's something particular with the Gujarat ISP maybe
I feel like there's some issue in Gujarat probably cause I also had few sites down and very slow response in opening sites.
ping to different servers is shat in gujarat, i go to bangalore and all pings to even singapore are within 30ms such a plus for gaming
Faced the same issue while I was in Gujarat, WARP seems blocked there and you get Co-location center from France and sometimes UK,
Currently now in Maharashtra and WARP working clean here 5ms to Bombay server at the moment.
Check TCP MTU and MSS. Noticed a similar issue connecting to Akamai CDN through some of the large ISPs. Somewhere there is a BGP router or CGNAT router in between having TCP MSS and MTU not configured correctly on the outgoing / incoming network interface, that misconfigured router is not reassembling fragmented TCP packets while leaving it to the next router. Also CDN nowadays puts some sort of packet scrubbing to mitigate TCP reply and fragmentation attacks.
I am too getting into networks. How do you get into the details without pivoting towards network engineer role. I am a backend software dev but I want to delve into the depths of routing
@@siddhantchavan1370Start with Hussain Nassers Networking course on Udemy. It gave me lots of insights
it will effect multiple people...this is so far only specific to one user
@@siddhantchavan1370I tinkered with some opensource firewalls and Linux routing while setting up my very own network and kubernetes cluster at my home lab. I was curious from my childhood to know the nuts and bolts of the internet ecosystem. So now I have my own network with an Autonomous System, Public IPs and I am a member of RIPE. I started my own experimental research network with my AS203145 and now I expanded it from the cloud to my home.
@@siddhantchavan1370knowing some of the networking stuff and os stuff (socket programming, IPCs, etc.) really helps backend developers to write code for large scalable systems. By profession I am a developer too but I always have this kind of tinkering hobby aside.
going to drop JIo, its big on censorship
Yeah lots of issues with jio Restrictions on may websites based on cloud fair server.
In my experience the only way around this is to use a different DNS host or vpn unless their ISP or Cloudflare changes the upstream providers.
For ISP I recommend having two different connections. I understand that getting two fiber connections might not be possible for small scale but having at least a second connection dedicated to the server. Considering that ISP fiber connection provides 90% uptime average in india so having a second low cost setup will be helpful and a Different ISP means a different routing network which will be helpful in these situations.
A simple restarting all the network stuff will be helpful for resetting network route to best connectivity(I had faced similar problems in the past and this was the simplest thing I personally doing for better connectivity)
Or maybe just go a friend who uses a different ISP
i also observed an similar issue in chennai on Wednesday with BSNL Fiber, it was resolved after 3-4 hours
Some ISPs have firewalls that cause problems like this. I'll give you an example, I live in Kashmir and here Jio has a firewall in place, it works good for the most part but if i open slack, I'm not able to join meetings sometimes or sometimes media doesn't load. Sometimes even the API's that I'm testing keep failing. But when I switch to my other wifi connection by BSNL, everything works flawlessly.
damn bro thnx a lot for covering this , ive been affected by same.
also this issue doesn't exist on BSNL ☠️
you can also ask the user to check the cf server location
by asking him to go
learn.coders..../cdn-cgi/trace
also if you use warp+ then speeds aren't affected
it's some heavy messup with Airtel, Jio routing
The best troubleshooting should be done is connect him with his mobile network which has different ISP because ISP routers uses BGP protocol to connect to the hops and different isp use different types of QOS mechanism to priotize the traffic, If you look clearly your html and css images are loading fast but when it comes to video it sucks but they are having different QOS mechanisms.
I also have this issue, I used to cloudflare regularly before but now the internet speed of my device is significantly slower when use cloudfare.
Thats why I left cloudflare.
By cloudflare, I mean cloudflare warp vpn.
@@parthbhardwaj4279 hey but what is the usecase of this cloudflare vpn in your case..as in using unreachable websites or anonymity or something else entirely
?
what's your isp?
@mr.lastchance Airtel fibre
@@parthbhardwaj4279vpn is a different case
Our isp's just block cloudflare subdomains because some people use it as bug host and this specific problem occurs more in jio than airtel and than maybe vi.
Likely Cloudflare DDoS protection from abuse from that ISP's ip range. Reason why those pages loaded is because of cache this user had, maybe?
Your knowledge and problem solving skills are amazing dawg
Since the user was able to access the same website using different internet medium, it is most likely MTU issue. Try changing the interface's (e.g eth0) MTU to values like 1300, 1250, 1200 or lower and play with different values.
Most discord pfp doesn't show up when I'm using my Wi-Fi. I use nextDNS now and it fixes the issue.
I used to host my own VPN at some Mumbai based VPS and that used to solve all my routine based latency issues for me.
Because the ISPs would "provide" good speed, but in reality it would have terrible routing and most sites would be extremely slow.
This appears to be a throttling or peering issue between the specific ISP and the CDN. It could also result from data inspection or filtering on the CDN's side or the ISP's network, causing delays. While using a custom route table might offer a solution, it would involve significant effort and fine-tuning to define effective custom routes.
it's probably somehow ISP problem. whenever i update my system threw via my Jio 5G network it's provide 1 KB to 100 KB speed but in youtube i can watch video & stream 1080p60, when i change to Vi 4G network it's speed like 500 KB to 2 or 4 MB speed sometimes it's like 6 MB idk why ?
I would also try changing the dns to any good private dns (nextdns or cloudflare dns) , few isps use their nonsense dns resolvers which screws up routing .
i would recommend that Private Dns must be enabled at both router level and device levels
hope the issue gets resolved with this
DNS is likely not the issue here. DNS only does domain name to IP address conversion which happens just fine. The problem is the data transfer is very very slow which is not the responsibility of DNS
I second this. Similar thing in the video has happened to me as well.
Switch to Cloudflare dns and it was working!
TLDR, before I switch to my Unbound DNS. My outlook web was working.
Did some test Unbound DNS and Cloudflare DNS is resolving a different address to Microsoft cdn.
Unbound is giving me an address with bad routing I guess. Some reading also point me to EDNS not being supported back then for Unbound, thus it is giving me an address with bad routes.
I'm not sure about this, but this happened to me on multiple instances where switching the network works, or changing the DNS works.
Incident 1:
Sanity CMS dashboard kept loading
Contentful homepage kept loading
Resolved by changing dns
Incident 2:
I coded and deployed a website and assigned a custom domain (godaddy), the website was live on the domain as viewed from other networks, but not particularly my WiFi.
I dug into this behaviour and back then I came to know that either WiFi routers or somewhere in the hop stream devices cache the route. The config could have changed somewhere and the cache didn't revalidate yet. It has a fixed refresh time and it works once that happens.
This incident mentioned in the video closely resembles my experiences.
@@codedamn should try to traceroute on the affected pc and try pinging ips which could tell u that it is a dns problem or i think ur right that it might not be a dns problem, and ip while pinging that has the highest wait time is the culprit then u can investigate further
I sometimes face this issue where instagram(and some other sites) slow down randomly which gets fixed by changing the DNS servers
ISP issue definitely. I had similar issue where Netflix and some parts of Amazon websites (prime, aws) were not loading but everything else is working fine. Contacting my wifi provider resolved it, they took my router and changed some internal id and it started working fine.
I have having this problem with jio 4g for around more than a year, some apps and websites just didn't work with jio, earlier i used to solve this problem by turning on cloud flare, today i was booking a cab, the speed was slow, then turned on cloudflare warp, nothing worked, checked youtube it was working fine, whenever i recharged jio i faced problem with some or other site always, the other sim i have is Vi, which works perfectly fine for all websites and apps
As far as I've noticed, ISPs using jio's DNS systems cause issues with cloudflare. I noticed 3 ISPs with this and 2 without and the issue happened as I described
Once I had a slow connection to vercwl hosted sites
Complained to my ISP
They said they cleared DHCP pool and then it started working fine
lol
I thought it was just me but having routing issues for more than 4 months now !! its frustrating as my local ISP doesn't know about these errors and label them as "UNIQUE ERRORS" !!
It's not the ISPs, it's the cloudflare which has very bad peering with Indian ISPs. Most of the time you will end up connecting route node outside India and thus the packets route across the glove before it reaches you.
Their anycast often results into flooding origin server if timeout happens.
There's only one solution : All users must push CF to fix their peering with ISPs. There's some bad routing involved and node selection algorithm is performing quite bad.
There might be another reason where they are deliberately doing it to extract data, most selected nodes are strategic locations where data processing laws are not strict so there is another angle to why CF might be doing it. There's surveillance possibility involved by non Indian companies and that's a real issue.
ISP's in India makes VPN connections extremely slow, also some sites keep breaking with a particular ISP everytime, but works with another ISP... It's makes internet experience pathetic sometimes...
WARP has been removed from playstore and appstore, following a govn takedown request. Smells like something is cooking.
Yeaaaah dude I was like wth why can't I find it
If it's a local isp then that should be the problem IMO. Coz I have experienced like this with Google meet while attending a class. In my case same was happening after switching to mobile data the issue was not happening. It happens with specific website or service.
Had similar kinds of issues multiple times some of our website users not able to play videos from Vimeo cdn .
I think it also affects Google sign-in for some people
I had similar problems when I used airtel as network provider, and when I used other ISPs it worked fine for me.
I had an ACT static ip and I was hosting a site and the funniest thing is only other ACT users couldn't access my site!!!
Very fishy
Since Cloudflare has nearby servers based on locations, could it be that the Cloudflare server that people from Gujarat are using has a problem and not from Bangalore? That would explain why WARP slows down things for him.
Local ISP is so bad when it comes to Online gaming,the network delay is insane 😢
We are also facing a similar issue with cloudflare, but we found that the issue was only faced by the user with Jio network connection and not by the users using other ISPs. I am from Gujarat, by the way.
it is crazy how our eyes light up when the problem is far our reach, and you know that there is lots of knowledge to be achieved if you get to solve it! reasons i love software eng!!
1. Have you told him to reset their router setting , may be there is some rules and routing set by him or someone
2. Have he tried on different devices or different pc/laptop.
3. He can also see if there is custom dns set by him or their is default dns may be try to change it to some other dns services.
4. (If not sure about the connection and pc setting ) I would route my wifi through mobile acting as repeater having both wifi and hotspot on,mobile wifi is connected to router and pc to mobile hospot. Just to check flakkyness of the connection settings.
The User registration info is not hard coded to the router, if we reset we won't get a network unless we login with some credentials.
watch the full video bro, he covered everything you've mentioned.
@@xtan-io I have seen whole video, and I am not that free to just write random thing.
It personally happended to my user, He added certain rules and script on router to block ad and trackers.
@@xtan-io There is a thing called TR069 , it auto configs the router with the users info if you reset it.
I don't think it's possible to use phone as a repeater. Once it's connected to wifi, how can it be a router at the same time. That's a hardware limitation.
This is so weird that I'm having this exact problem, but with entirely different ISPs and products. I'm trying to connect to a work VPN hosted in another country. Trying to connect to this VPN and using the remote system while on a residential ISP, it'll always route me through a server that has consistently high ping (230-300ms). I have to disconnect and connect multiple times in order to force myself to connect using a faster path. However, the moment I switch to a different ISP, the problem vanishes and I'm able to connect 100% of the time with pings around 100-110ms.
Funnily enough, this residential ISP problem only occurs in the town I live, and whenever I move to a different city and use the same ISP from there, the problem does not occur.
It's JIO issue, i am also having the same issue with my app.
fact .. yes this is JIO issue ..
i had issues with jio for GitHub as well sometimes
yeah i also had issue.
Mere isp ne mera hi website block kar diya tha mai socha mera website down kyu ho Raha hai pahale hosting dekha sab running condition me tha phir VPS check kiya wo bhi running me tha phir samjh gaya ye mere ISP ka kand hai..
unko boblo unblok kare
Understand ur problem this happen bcos of cloudfare as they are using automated tool to identify the optimal routing path. Reverse traffic sending towards the ISP. Many time the path choosen are not optimal and need alternate path but automated tool understand this as best path bcoz of all the parameters configured are found ok... which may not be the best. And still keep sending traffic on the wrost path.
I use airtel and I too noticed this problem when accessing Udemy. My neighbour using a local ISP gets a flawless access to this site and every others, I'm planning to switch to that soon. Also the customer service provided by airtel or jio is subpar.
I see significant drop in speed with cloudfare warp enabled.
This exact issue happens with the AWS client vpn endpoints as well. And I remember it happening with OpenVPN as well.
This is such a nice video, so much important information is presented in a easy to understand method in under 15 minutes. also thanks for showing the real problem users face everyday
I think the problem is ISP sharing multiple connections on a single public IPv4 (I know that ACT does this and would be similar for small scale ISPs)
and as a result, Cloudflare can throttle requests thinking the public IP as a spammer (since multiple customers have same public IP)
This happens on the reliance internet. Not just gigafiber but with mobile internet as well. My research also directed me towards disabling the ipv6 in cloudflare, but being a free user I could not do it.
jio uses ipv6 connection how can u disable it ? if u disable it then u r internet will not work i guess they provide u ipv4 but on WAN level
I am not sure, but is this the reason why I cannot access some sites, like steam community page would just show me Error code 118 and it's impossible to download anything via the Xbox app and to play any sort of online games. Using mobile data is much better than the broadband internet I have. Recently, from marvel rivals, I saw that the latency from my router to ISP was around 70ms and then ISP to the server was only 20ms. I have tried changing the internet provider (because the same ISP supports multiple providers) and the issue still exists. It's quite annoying.
yep being network security guy the bgp or CGNAT routing are ok but i have sometime notices the tcp MSS (maximum segment size ) and MTU (Maximum transmission unit) has gone lowed for sometimes also the thier is lot of tcp retransmission and dupack in packets i saw in wireshark .I also heard from isp that sometimes the tcp mss becomes low so they have to seta particular value on both sides of receiver and sender for example liek 1460 but due to additionl protocols like TLs the size may increase and more fragmentation may needed for the packet hence more reload time to get the webpage on the device .
Very same thing is true with Flight simulator we are building in Ahmedabad.. Its ISP fault. We have changed multiple routers, modems everything in between!
when did this happen ? since about 2-3 days i am getting weird speed issues only on some domains. I am using jio fiber. And its even worse today, i am having to use warp for decent experience. Interestingly, even last year i faced such problems around this month.
This is the reason why i switched to aws instead of using cloudflare rds. I was using jio and spent the whole day debugging code, only to discover that using a vpn solved my problem. Then i switched to aws even though it might be more expensive. No hiccups from there.
Looking at this without having the opportunity to run traceroute and pinging individual nodes to identify the latency and packet drop, I would say the issue is probably in one of the exit nodes which route the traffic. I'm not an expert in Network Architecture so take it with a grain of salt, I'm hypothesizing that the exit nodes might have some throttling based on route and cloud flare being widely used might be getting throttled or the resources at the exit nodes might be bad. These are owned by TRAI if I'm not wrong or in some cases leased to bigger ISPs by TRAI for maintaining the infra. Usually the work around is to build redundancy but not sure how effective these are. One question I would ask the customer is if they're seeing any increase in performance during non-peak hours like middle of night to rule this hypothesis out.
I am from Gujarat, we are using on premise hosted Application (Web and Mobile). As per the observation mainly the Jio Users are facing this issue. Rest all users can access the application with proper speed.
Once i had an issue with CODM, its not connecting over Netplus Wifi. While analysing network packets i got suspicion on DNS servers of concerned ISPs. Indian ISPs(fiber bb) have a bad habit of switching old customer to low performance/bad DNSs servers. Run the tracecert command on the affected node. For inspection you can also use TOR.
shadow banning?
i have same problem with my server, the issue is from ISP, it not able to serve some site or ip for few secs, it generally happens with BSNL, Airtel and GTPL (spl in gujarat). At that time speed test and youtube will be working fine.
The Cloudflare and Indian ISP part is heavily discussed.
Cloudflare is faster if you're using their premium services and not just free CDN, Argo being one of them. Big ISP wanted cloudflare to pay for the traffic so to balance cost unless the domain is premium they don't use premium peering for the most part.
It's a Cloudflare and ISP issue.. I'd suggest move to Bunny CDN if DNS and CDN is all you want.
There could be a firewall issue. To troubleshoot we need another pc to have the warp installed is same on both pc in both wifi and hotspot situation then it could be due to upnp or port forwarding. My ps5 remoteplay doesnt work with jio but i was able to make configs to allow certain traffic via jio router to make thar possible.
It's because our ISPs think Cloudflare WARP is a VPN and recent ban wave might have resulted in this blocking of WARP and WARP+
I have jio fiber in Mumbai and this problem is very common. Recently it has become worse. Many sites/teams dont work as expected. I switch to Airtel hotspot and it starts working immediately. I can't even complain because the problem is intermittent so i can't reproduce the issue when the technician comes. Sometimes I switch on the VPN to bypass the issue.
If removing cloudflare fixes it then it's definitely cloudflare problem. If route has similar or same nodes, then it could be a problem with one of those nodes. If nodes are changing, then see what node remains constant to narrow down the faulty system.
ISP issue i also faced with jio in pune
it keep cancel my SSH connection with anyserver then i use wrap it work or when i move different city it worked
Coder's gyan, I've been following his channel for almost 2 years now, amazing content and a really good person.
I am using Airtel Air Fiber connection (100Mbps) and when I use my company VPN the speed drops to few Kbps. The issue is with the Airtel Air Fiber only. I didn't had this issue with Jio Air Fiber, Airtel Fiber connection nor mobile data(VI). I am unable to work with my work VPN.
It's govt blocking vpns lol
This issue has increased significantly in JIO after they implemented the CG-NAT. On top of that, changing DNS doesn’t work with them, it’s not stable. There are high chances that the issue will be resolved when the IP gets refreshed ( In there technical teams words ).
Airtel, Excitel performs really good with minimal DNS change.
The cgnat they mean? It simply lasts till th modem has power un most cases
ISPs dont assign public IP to individual connection. All connections in a building are on Private IP behind a single public IP address. So if there’s any issue with that IP routing than we are simply f’ed. Airtel’s implementation of this CG-NAT is far better than JIO.
This is a common problem with small scale ISPs I believe. For years I have been using a small ISP (available in my area, WB) and often it would be slow for some websites / apps but whenever I switched to mobile data it would be work all good. Another observation I have, if I switch connection from mobile to wifi AFTER I open the app/site it would generally behave better. Yeah definitely a trashy experience. What's the point of 80mbps data when it struggles on basic stuff.
Thanks! that was great.
Was the guy using GTPL as ISP, they are using some old dns and filters which sometimes blocks or really slow down speed to KBs. Simple solution could be just change router dns to opendns or Google dns or cloudflare and you would be good to go.
The issue seems to be because of the contention at peering facilities like Internet Exchange . We were facing same issue and we also have bilateral peering with cloudflare. The problem was fixed after reporting to the Internet exchange. There was also a partial routing issue at some locations which cloudflare had published.
I'm facing a strange issue to: during a Dockerfile build, one of the npm ci commands fails. However, if I log into the container and run the same command manually, it works. Interestingly, it also works fine when using a different ISP. I've spent hours trying to figure out why it's failing and where the issue lies.
For me Duolingo is not working on Jio 4G from past two days. Vi app is also not able to connect to server. Using other network both apps work.
ISP messing up routing table is a common thing. I had similar expirence with BSNL, but it was an issue specific to me. But the customer service agents are not technically inclined so they don't understand what I am trying to say. I even pinpointed their exact failure point. I don't think this is limited to India most countries have this issue. Also try ipv6, normally routing of ipv6 is better as it uses SLAAC so RIP can work directly as there is no NAT in normal use case.
Best way to fix this is to use a router side VPN, and just move the problem elsewhere
I get this 3000ms ping spike every 2 minutes, when playing Valorant and CS or any online game every 2 mintues I freeze for 3 seconds. It's very frustrating.
Get the traceroute from the user system via wifi and hotspot towards the cloudflare ip manually verify all the hops and identify the one with highest latencies see whom that belongs to inform the ISP about that.
ISPs forward their load based on the traffic like aws facebook cloudflare akmai etc bigger players in the market and put that load on other ISPs infra and sometime there routes our cables are too crowded and not monitored properly which causes these latencies.
Its probably with the ISP.
Airtel is notorious to have intermittent connection issues with AWS US region endpoints. Its so difficult to convince client or even your colleagues!!
Your client from Gujarat must be using the Gujarat’s local broadband named GTPL broadband, which has a hell lot of issues with routing
9:58 same issue happened to me also. via my jio wifi my website not loading but same via my jio sim (mobile network) working fine
Peering issue from IXP/PNI or fully utilized NLD link
Thanks for sharing ❤
experiencing similar, user might be on Jio's network stream, coz am on Jio and facing similar issue with cloudflare servers, facing packet loss like 30% on the routing to cloudflare, changing dns isn't working, only using VPN works. Websites doesn't load or doesn't load after opening. Contacting either provider to change routing or informing cloudflare about the routing will only work. The issue usually starts appearing at peak hours.
i do also believe that there is some issue with ISP in Gujarat because i am also enable to visit VLC media player website and if i connect to my phones network then i am able to access the website.so i guess there must be some issue.
Which whiteboard app you are using to show diagrams?
It's Excalidraw
@badrinravi Thank u🥹
@@badrinravi this video's one looks similar to Excalidraw, but not the exact same?
what app are you using to draw the boxes
My API server was also slow 2 days back in Delhi region with airtel network (broadband and cellular). It was behind cloudflare on contabo.
Shouldn't traceroute help you figure out the exact server causing problem ? And maybe the IP address be used for contacting the server owner ? Not sure on the 2nd part.
If he's using Airtel wifi then yeah, there are some issues I had a call with the customer care and they said the network will be resolved shortly. It's been almost 2 weeks and not resolved yet
Hey how about reset the router or check the configuration on the router, find if any filter is applied.
Airtel user here, same stuff happens when playing online games too, to avoid this I route my my connection from mumbai using exitlag.
I faced the same issue with my ISP, I have been battling with them for almost an year and I just gave up, the moment I connect to cloudflare warp, the speed just goes down to < 1Mbps. (I do not have a solution and neither the ISP).
I don't know if it's related or not JIO (always) & Vi (sometime) users are not able to join Minecraft game server hosted in India & Singapore.
If they use some VPN or cloudflare's warp they are able to join.
Never got this complain from Airtel user ever.
I think there is problem from where ISP is getting service
Using quad 9 dns resolves a lot of issues lol
My Arch linux has same problem with Jio Fiber. Slow internet speed. Manjaro works fine when I had BSNL Fiber.
You didn't specify the isp of for the users wifi and mobile Hotspot
these 5s and 10s delays are nightmares i've had to deal with for a couple of years now.. simple cloning of a git repo with submodules takes forever because for every enquiry to download then to enguire takes a whole 25secs minimum..weirdly, it only happened on linux exclusively and never saw anything like it on windows..
guess what, switching to cloudflare dns and disabling ipv6 was the only way i could maintain the stability and keep the latency low like i have been promised by the ISP (and it's still at 30ms btw..) the customer service is a pathetic joke.. airtel xstream fiber..
Do you have only one client using this ISP? (Local ISP maybe?)
Could also be a wifi router problem at the user's home...
Also...Sometimes I experience these issues on public wifi spots (not in India yet) which block certain IP ranges or naked IP communication in general.