Hello all, we're having exactly the same problems here and it is driving us nuts. I bought a new controller and that worked for 3days and now it can't find the mic again. That's 3 controllers for us and multiple headsets. I can definitely confirm that it isn't a broken controller or headset. Yesterday, by complete fluke it worked once for for 5 minutes and nothing since. It isn't router problems either as I've checked this. Microsoft need to get a fix for this asap - never seen anything like it. The problem is, is that it doesn't seem to effect everyone