Halo 4 problem

I just recently decided to fire up halo 4 on my 360, but I’m unable to play matchmaking. After loading a map, I instantly get booted to the main screen. It’s only happening on halo 4. I’ve been playing the master chief collection and halo 5 with no problems. Any idea what it might be?

It could about your NAT on the 360. Have you checked it out?