HelpMw3 disconnected by host

So yesterday I was trying to join a match when I join a game it just drop me off the lobby and says ''disconected by host'' I deleted the game and all his files and installed again but error has persisted ... could somebody help me? Thanks and sorry for may bad english

Somebody could have kicked you with mw3sa. I use it when I do xp lobbies, and put people on my own little ban list. But with mw3sa you can kick and ban people from your ip if you are host. So chances are you pissed someone off and got thrown off their ip address.

No just from the host that banned you. So you guys will not be able to play again, unless he un-bans you from his ip address.