My roommate and I have our PC’s in the same room. We are both hard wired. We are able to play one game together but after that one of us will get the “connection interrupted”. We’ve had this same issue with the new Modern Warfare. We had our internet provide Spectrum send out a guy yesterday. He said he found some issues between the connection of some of the wires then said he fixed them. We are still having the same issue. I’ve looked and it seems a lot of others are having the same issue with more than one user using the same network.
I’ve found a fix. I downloaded a VPN, Tunnel Bear and turning that on while we play seems to work