why does my kinect mic turn off when i turn on the second controler when im chating can two players from the same console chat using the kinect??
Check to make sure that the profile on the second controller doesn't have the kinect muted.
If the second player is a silver account the online chat feature will turn off as that account seems to take precedence when playing online. If you want to chat while playing with a silver account player, you will have to use a headset.
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