Minecraft pe connection to Xbox live is not working?

I bought minecraft pe yesterday and to play on servers you have to sign in to Xbox live.

So I created an account.

But if I go to connect with xbox live now, that invites always briefly and then breaks off.

Where could the problem be?

Try this here:

Go to start
Go to the letter "W"
Go to "Windows Powershell"
Right-click and click "Run as administrator"
In Windows Powershell, just copy this text and paste into Windows Powershell: Get-AppxPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$ ($ _. InstallLocation) \ AppXManifest.xml"}
The computer will now reinstall all standard Windows 10 apps / services!
Microsoft XBox Gaming Overlay should now also be reinstalled

After entering the code wait…

Then try again!

Thanks for your detailed answer, but it was about the Pocket Edition.