New router broke hass.io?

Hey there.
My old router broke and my provider got my new one with another DCHP area (I already changed that to the old one) and I lost the ability to access devices without typing .local behind the hostname.

Since I switched my hass.io instance to the new router I can’t access it anymore, unlike all my other devices.
I connected via the debugging console, here is the output: https://pastebin.com/vRSGbih3

Could this happen because of a network change? Or this unrelated?

Greets, Sören

PS: Just found this topic. Looks like am not alone, but I guess or problems might by quite different

see if that helps:
https://ubuntuforums.org/showthread.php?t=2120289&p=12532449#post12532449
I had the same issue after I replaced my router but I can’t remember how I fixed.
Think it may have been something to do with my host file, but can’t remember, sorry

Thanks for the tip but my ISP doesn’t seem to resolve .local names. I can access other raspberry pi’s via their “new” .local hostname too