Can't power down console from controller...

Remove your controller from the console and try a power cycle by holding down the power button on your console for 10 seconds.

Retry afterwards

If anyone runs into this issue, then do the following.

With the console powered on, remove the batteries completly from the xbox controller,

Hold down the power button the xbox until it powers down,

With the batteries still out of the controller, power the xbox up,

With the xbox powered up and on the home screen insert the batteries into the controller,

Now press and release the sync button on the console,

Now turn the controller on and immediately press and hold the sync button until the controller lights stops flashing. Your welcome.

Try taking the batteries out with the controller disconnected from the console for 5 minutes. Then do a hard reset on the console. Hold the power button on the console for 10 seconds or until the power shuts down completely. Unplug the power cord from
the back of the console for 5 minutes. Plug the power cord back in and restart the console. Replace batteries in controller with new ones. Power up the controller and dnce it is back up and operational test for results. Good Luck!

Try performing a hard reset EXACT like this. Hold the power button on the console for 8 seconds or until the power shuts down completely. Unplug the power cord from the back of the console for 5 minutes. Plug the power cord back in and restart the
console.

It could be a problem with the controller too. Try using a different one if the hard reset doesn't work

Didn't work, of course. I can't believe this is an issue.

Try having the batteries removed from the controllers before powering the console down to ensure they one of those aren't activating the console.