Crysis 2 disconnecting router

Every time I play Crysis 2 now, after a minute or so of multiplayer my internet connection just disconnects. I have to restart my router to be able to connect again.

Anyone else having this problem?

I do, but I do not restart my personal router. Nearly every game I get disconnected, it also says Failed to verify DLC purchases. I even redownloaded the crysis 2 DLC zip. The truth is, I have no idea what to do...:(