I have the same problem since June 17!!! I made a similar thread, but nobody responded to it!! I mean seriously?!?!! This is a problem, I want to be able to enjoy the multiplayer for a game I paid for, that says multiplayer is available for!!!!
I have the game on STEAM, so I don't think I can roll back versions because the game autoupdates. I have tried uninstalling the game, but that has done jack!! I don't think I should have to do that either, this is blasphemy!!!!
I want a solution other than, "Don't play multiplayer then" pfff....
EDIT:
My mistake, Im having a ploblem of UNABLE TO CONNECT TO SERVER, not with server not updating. But still help me.