I understand stand many of you already powercycled your console last night or about 3+ hours ago. A patch went live and a power cycle should fix this, make sure you have the patch downloaded and perform a power cycle.
Let us know if it helps or doesn't help you get in after trying it right now.
How to power cycle your Xbox console:
- Turn off the Xbox One console by pressing the Xbox button on the front of the console for about 10 seconds until it shuts down completely.
- Unplug the console's power cable. Wait 10 seconds.
Important Be sure to wait 10 seconds. This step resets the power supply.
- Plug the console power cable back in.
- Press the Xbox button on your console to turn on the Xbox One.