Game crashes.

Hello.
Since today I've had strange disconnects. It's not like the ones that there comes up a sign that says "Disconnected from server". It's more of a game crash which looks like a internet error. But I checked my connection and it's not that.

Well, what happens is that the game freezes. And it says that the game is not answering to commands. My computer works fine and it's kinda new so it's not about that.
Also searched through for virus and spyware etc etc.

Anyone had the same problem?

Please help me.

Thanks!