Very consistent lagspikes about every 20-30 seconds

I wanted to start the league, but i get very consistent lag spikes. I tried Frankfurt server, get between 10 to 20 ms and it works very well but then a lag spike of about 6000-8000. Then 40% of the time i get "An unexpected disconnection occured".

Here is my WinMTR, maybe someone can shed some light on the situation. I would love to play this league.

https://pastebin.com/aZhJNyXd

Same here. Going from 40 to 6000ms spikes. This is now unplayable. Its even worse than Diablo 4. Do one of two things: Fix this or make the retaliation build viable again so I can survive going afk for 5 sec while the lag stops and brings me back in.