Matches not starting

My friend and I are trying to play on XBL and every time it goes to start a match it sits on the screen with the selected characters for about 30 seconds. Then it says lost connection to Xbox Live and our PP drops like crazy. We can’t even get into training mode. Anybody know why this is happening?

ISP problems, NAT problems, XBL problems, corrupted DLC, DVD tray problems, DVD itself is scratched (latter three are based on how XBL handles security checks.)

Could be any one of them. It is hard to determine the problem. This happened to me for a small period every few days and it suddenly stopped. Never happened again.

Reset your router. If that doesn’t change anything, phone your ISP and tell them you’re getting frequent disconnections and they need to fix it.