I'm sorry to hear the co-op with your brother doesn't work anymore. Could you please both follow all the steps from our dedicated connectivity guide ? It should help you solve the issue. You can find it by clicking here [www.ubisoft.com] Let us know if you have any other questions. - Ubisoft Support Not sure if Arcade is using peer to peer or client server connections but it sounds like a NAT issue if only one of you can connect at a time. I would contact Ubi support. Anyone having issues with Co-Op? My friend and I are trying to play co-op but neither of us can join each other. One will host, and the invites send, but when I accept it nothing happens, it's as if I never accepted anything. Has this happened for anyone else? & if so, is there a "fix"? 19 36 Share Sort by: Add a Comment [deleted] You should first start by restarting your system. The second thing you should do is to double check that no other programs or software are running at the same time that could interfere. Next up you eFgN.

far cry 5 coop not working