Game disconnected: could not join server.

I had same problem and I just online chat with the EA games people and they walked me through this problem if it happens often then uninstall battlelog manager (in the control panel uninstall section) then reinstallit and also look to see if Punkbuster is showing up as pb A and pbB as well in except. And when you start up after battlelog manager is reinstalled game should work fine. Oh by the way make sure in your c drive that Punkbuster is uptodate in the orgin games folder where battlefeild 3 is and it is under pb and the whole pbsetup shpould be there run that 2 - 3 times in updates and then do game update in punkbuster as well.that might help if it dont get ahold of EAgames in chat.This is my link BUT it does have the connect to chat button for you to use. It wont link you to me at all for they ask for your name and that. Ok Hope it helps you out

Petty4309