Having Issues with Dead Rising 3 co-op. Anytime myself or someone else tries to join a game, we get the "A player has disconnected" error. I have only been able to play dead rising three co-op with my brother once. I have an open nat, have tried resetting the mac address, waited to start a party until we were both in the game etc. Unfortunately nothing so far works. I would really like to give the Xbox One a chance but right now it is pretty much a five hundred dollar paperweight.