I have the same problem as a lot of people I keep on disconnecting after I insert the game. I tried calling Xbox live support and told me all the process from clearing system cache, deleting my account then retrieving it, deleting all the updates then re downloading it. I even though it was my router but i never had any problem with it before. I even opened the ports. I haven’t changed my ISP I been with Rogers. I called Xbox multiple times hoping they found out why this happening and they have no answer. Lot of people are having this problem and i being annoyed by it now. I played for the membership and not getting the use out of it.