Call of Duty MW3 connection issue

Hello, last 2 days while playing cod mw3 Multiplayer I’ve lost connection in game. Doesn’t matter what game type i play i get disconnected in game. Says ( Cod disconnected from cod servers ) and game dose crash. I need to close down game from End task. I’ve never had a issue with connection in call of duty before just been basically last two days had this issue. Other games like ‘world of warcraft’ has no issue and works fine. Did try some different fixes but nothing is working and also did a scan and repair of the game. I’m at a dead end. Please help if able. thanks Greg