Basically, whenever I try to load any multiplayer content it always tells me “connection interrupted” and I have a fairly new pc and pretty good wifi. I am able to play all of my other games on steam online with no issues. Also, I get into US East and West servers which I live in the eastern region so it shouldn’t be the problem. In co-op, campaign friends are able to join me but I can’t join them, is this a problem if you have cross saved progression and is anyone else having this issue? (BTW I’m not using the Lan feature so that’s not it either)
It is Because your antivirus and port forwarding in your router is not applied. I had the problem(contacting to transport error) after port forwarding and antivirus permission everything is fine. Give it a try