While playing Halo 4 (and only on halo 4) in matchmaking or campaign I will randomly get kicked off of XBox Live and can sign back in right after getting kicked off. My NAT says it’s Open and have never had this issue before. But noticed that it only happens on Halo 4. Anyone had the same problem? How to fix?? Thanks.
This sounds like an issue that Xbox Live Support would be able to assist you with. It would be best to reach out to them and see if they can resolve your issue. Good luck!