Signed up to say this is pretty ridiculous. Friend and I attempted to play in the first week of release to no avail. We put it on hold until today, nothing has been fixed after 2 months? I'm an original kickstarter and have shelled out more money to play COOP with my buddy on X1. I promised him this was a great game and that they could trust in Larian.
We've tried every single fix that we could come up with over the past ~4 hours to see if we could bring some news to the rest of the people here having problems. We've gone so far as to dig up modems and routers we haven't used in years. Bridging, port forwarding, triggering, IPv6, IPv4, NAT, wired, wireless, and every combination under the sun. The only thing we couldn't test is swapping our ISP. I'm on Verizon FiOS and he's on Comcast. That can't possibly be the problem as we have no problems connecting with each other over PS4/PC/X1 (elsewhere).
It also doesn't reassure me to see that this patch may only "possibly" fix the problem. If it doesn't, what should we do from that point? Throw our copies into the dumpster?
