Crashing after every game.

Recently, after completing the cup, I tried to play a couple squad more to help a friend complete his obj and then went to play squad battles. However, after every single game I play, I have an error communicating with servers, and it sends me back to the main menu and gives me a DNF. The weird thing is though that my wifi is perfectly fine to run other games and the games themselves, but they always crash after the final whistle before I am able to advance back to UT. Does anyone know either a fix or a cause of this?