I think its my internet, but as soon as I begin to play a game of halo 3 or nhl 09, I get kicked off of the internet. This just randomly began happening, and ive already tried unplugging and resetting my modem and router. I have wireless comcast high speed internet. What do i do? It's going to drive me insane. Im paying for stinking xbox live and i can't even use it! Help?