Lag in online Co-op play?

Hi guys, so ive been playing online on the same connection as my roommate and the campaign keeps glitching out and other players start walking into a wall. Both NATs are open and we have a dual band router at 50mbps. Please any idea whats happening? Its pretty much unplayable.

Bump

Bump

Just got done playing co-op for about 2 hours with myself, 2 other xboxes on the same connection (that’s three here in my house), and my brother who lives about 30 minutes from me. Didn’t have one problem, worked flawlessly.

Bumping your own post is against forum rules just to let you know.

are you all on the same data center. itd be a problem if one is in an australian server and one is in the US server