I started up my xbox tonight, it signed into xbox live as it usually does when I boot it up and then put a game in. But when the game loaded up it disconnected me from live. I tried to reconnect but it wouldn't do anything. When I went back to the dashboard it instantly reconnected me to live. Does anyone have any suggestions for how I might be able to fix this? Thanks.

Which game were you playing? Have you tried a different game?

I've tried several games, even arcade games right from my hard drive. The problem persists over all of them.