Xerox WorkCentre 7835i 7845i 7855i SMart eSolutions Disable or Not Enrolled

Why have my machine connected to Xerox servers when I no longer have a current maintenance contract agreement with them?
Disable SMart eSolutions or change your setting to Not Enrolled by following these simple steps.
Enter your Xerox IP Address into the address bar of your web browser.
Click on Properties
Locate SMart eSolutions and click on settings
Click on Not Enrolled
then save on the bottom right
Login default is admin and 1111

[@Alex_FR_IT]

I bought a 2nd hand 7830 which was actually enrolled but has been switched off for 3+ years. Owner company doesn't exist anymore; maintenance company doesn't exist anymore. Before powering it up for the first time, I blocked external comm on my router (printer can talk with the LAN but no connection to the internet). The 7830 claims 460 days of service still left. I bought metered toners and everything is working fine except for the fact the the missing comm with esupport prevents the copier from going in sleep mode. I now have 2 options: A) remove the router block and allow the printer to communicate with Xerox B) Unenroll the printer (and then remote the router block which would be practical if I want to scan to email and other features). The nr 1 thing I need to avoid is th printer requiring a pin code for accepting consumables (switching between meterd/sold mode). Any tip? Thx.