Not being able to log in.

Hello QuintinM1,

Thank you for posting on the Xbox forums. We understand that you are unable to log in to the Xbox Console Companion App and the Xbox (beta) App. We recommend making sure that

Windows 10 is up to date. If this does not resolve the issue, you can try installing the

Xbox Identity Provider App. Once you finish installing the application, go ahead and try logging in. Be sure to let us know the results!

Trying the following steps below might help, let me know:

• 
  On your PC, go to Xbox.com and select Sign in. If there are problems with your account, the instructions will help you solve them. If you can’t go beyond the sign-in screen, select Forgot
  my password and follow the instructions.
  
• If that didn’t work, select the Start button > Settings > Time & language. Under Date & time make sure the Set time automatically setting
  is turned on. Open Time & language setting

• If none of those options work, select the Start button > Settings > Accounts , then find the Microsoft account you used to sign in to the Xbox app and select Remove.
  Then go back to the Xbox app and sign in with the Microsoft account you just removed. Open Settings

I was able to solve my problem on line, but this has happened before.

Is this a really messed up way xbox/microsoft lets you know to change your password.

If so not a good way

Check also if your system and the App are fully updated

You should contact live service for account issues:

support.xbox.com/.../contact-us