Xbox S keeps signing me out

Hey there!

We're here to help. Let's have you
delete your account from the system, don't worry, your info is saved to the cloud. Power down your console, unplug the console and router for five full minutes, and re-download your account. This will refresh your account and delete your cookies. Also,
we suggest making sure that you're not using a surge protector and the console is plugged directly into a wall. Another helpful tip is checking if unplugging any USB accessories, including external drives, helps with this issue.

Hi, there!

Try to reset your console to factory defaults.

Follow step by step the guide:

1. Press the Xbox button to open the guide.
2. Select Settings.
3. Select All Settings.
4. Select System.
5. Select Console info & updates.
6. Select Reset console.
   
   7.On the Reset your console? screen, you'll see three options:
   
   Choose ->Reset and keep my games & apps. You should use this option as your primary choice when troubleshooting. It will reset the OS and delete all potentially
   corrupted data without deleting your games or apps. This will save you from downloading or reinstalling the large game files.

After you select one of the options, your Xbox One console will begin the process of erasing the selected content and resetting itself to the default settings.

Guide Link: https://support.xbox.com/en-US/xbox-one/console/reset-console-to-factory-defaults

Tell us if it workerd!

Wow I've been having problems with this since the Xbox one came out on my 360 and couldn't find a solution until now.. That really helped.

Hi,

Try to delete your profile (profile only), clear your cache (3 times), and then download your profile again. See if that solves the issue you're experiencing with signing out everytime you start a game.

To delete your profile (profile only):

Dashboard > Settings > System > Storage > Select your storage device > Gamer Profiles > Delete the gamertag you're having this issue with. Make sure when deleting you select Delete Profile Only.

Clear your cache (3 times in a row):

Dashboard > Settings > System > Storage > Highlight your storage device and press Y > Clear System Cache > Press Yes. Make sure to do this step 3 times in a row.

Re-download your profile:

Push the middle button on your Xbox 360 controller and go to Download Profile. Enter in your e-mail/password and it will begin to re-download your profile.

Please Note: If you're using 2-Step Verification you will need to use the Application Password that you generated upon setting up 2-Step and not your normal password. This is again, only if you have 2-step verification enabled.

Clearing your cache doesn't get rid of any sort of game saves, neither does re-downloading your profile.

If you deleted your profile plus items then you'd lose your save files, if you deleted just the profile itself (profile only), then you don't lose anything.