I was wondering if anyone else randomly gets disconnected from War Games with your Halo 4 network setting automatically changed to My Xbox 360 while still connected to Xbox Live?
This is through backwards compatibility on an Xbox One X and yes I am still connected to the internet without any problems going on with my connection whatsoever.
I’ve had similar issues with other 360 games and the only fix is to re-install the game. Should work fine after that. Not sure why this happens, but sometimes a specific back compat game will stop connecting to Live even though other back compat games work just fine.