We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
I had the same problem. Have the other person use the second controller and hit the xbox button or say xbox go home. Then move up to the top left of the screen and click the profile avatar. Then add guest and make sure the kinect identifies the second
player then click ok. Go back into the game and play.