Playing NFS Hot Pursuit last night and when I switched on the headset while the race was going within 5 secs the system was knocked offline. My system is on a wireless connection, the headset is the official wireless MS headset. I tried to re sync the mic 3 times and it did nothing. Some one suggested changing the channel on the router to 11 and that didn't work either. I also tried turning the mic on while playing Mortal Kombat Collection and again the system was booted offline. I have to turn the system off then turn it back on and it will be connected again. I don't talk to much over live but I'd still like to get it fixed and just wondering if anyone else has experienced this problem.