Losing connection to server while playing in online mode

Often while playing in online mode the game stops communicating with the server. It starts with the enemies damage bars going to zero but the enemies don’t leave the screen. Eventually I have a screen full of black bars and dead enemies, but I still am running around and now no enemies spawn. Sometimes the game times out and I get a disconnect message, sometimes I just quit as the game doesn’t seem to miss me.

I would blame my provider, but I play all the other ARPGs with online requirements and I don’t see this problem with any of them. Any one have an idea why LE is my only problem?

Thanks.