Hello xRIVANENx and thanks for creating this thread. I've been having this same problem since I started back playing ESO again about 2 weeks ago. I get randomly logged out without any error messages and it can happen anywhere from 5-30 minutes after logging in. I can't seem to narrow it down to any specific action (changing zones, teleporting, at a crafting table, etc). It has happened with all of these activities. I opened a support ticket and provided as much detail as possible about my setup and the symptoms I've been seeing. Unfortunately I've had a very poor experience with support so far with 5 different support techs responding to my thread with each one simply copy/pasting a generic scripted response. Its clear they have not paid attention to my initial case submittal as they are asking me things I clearly documented in the notes.
I know that I have a big enough Internet pipe with my 200/20 ISP plan. I play many other MMO's with none of the types of issues I am seeing currently with ESO with the random disconnected and drops out to the login screen. I've taken your advice and entered some of the IP address you listed above into my Router's Blocked IP list but not sure I can say that I've seen any improvement.
ESO IT definitely has something going on here from an infrastructure perspective. Hope it gets acknowledged and resolved soon as this is making the game very unplayable. Not sure how to get my support case escalated to someone that actually is interested in working with me to help narrow down the root cause of the problem. Very frustrating especially since I had just purchased an ESP Plus subscription.
I downloaded Wireshark today and started a capture just before I logged into ESO. After about 20 minutes I was dropped out to the login screen (no error messages). I ALT-TAB'd out and stopped the capture. When the disconnect occurred it looks like I was getting several TCP Spurious Retransmissions from 126.96.36.199 and 188.8.131.52. These packets were color coded in black background. I'm not a wizard with packet capture but would definitely be open to having you take a look at the file to see if I am on the right track.
I'd be happy to send you a PM if you are open to further dialogue on this,.
Would be glad to help, send me a message. In the meantime try blocking those addresses and see what happens. Worst case you would have to unblock them again if the game won't let you in of course.
I set up the firewall packet rules in Kaspersky, but then I found I was having trouble logging in. I would get stuck at the character screen with the message requesting character load. I would stay there and never log into the game.
If you load up my profile there should be a message button in there somewhere around the top.