Something weird happened to me while playing MW3.
I was in a middle of a game and suddenly i got disconnected from XBL and a System Update was applied. When I got back to play online with my friends, i couldn't connect to their lobby and they can't connect to mine, I was having an error ''Unable to Join''. My friends tried to reset their own XBOX so that maybe a new update was available, but it didn't do anything and still couldn't join on either side. I tried to clear the cache and re apply game update, but it changes nothing. So I'm stuck not being able to play with my friends. I can join other lobbies though, i just can't accept invites.
Does anyone else got this ?