Unable to sign-in to YouTube and some Google Apps

[esmann]

For a few weeks now, I have been unable to login to YouTube and the some Google Apps: Play Music, Play Movies & TV, Play Games, although Google Play Store seems to be working fine. My TV is an X8509C from 2015
In YouTube nothing happens when I click the sign-in button.
Play Music says "Unable to connect to server to add account"
Play Games just crashes
Play Movies & TV says "There was an error", when searching the library.
I have no problems adding my Google account, but syncing fails
I have tried removing and readding the account, downgrading YouTube and done a Factory Data Reset but nothing have helped.

The TV is up to date with the latest firmware.
Does anyone have any idea to what is wrong?

[esmann]

I found the solution. 

I disabled Mobile Management in the Google Apps Admin console. 

[Mick_D]

Thanks for letting us know the solution, @esmann ..!

Cheers

Mick

[chriswthomas]

How do you get to that specific screen on the TV?

I've searched various setup and config screens and can't find that particular option to disable it.

Thx