Ladies and Gentlemen,

I am trying to implement co-management in my work, It's all set up, however 2 of my 5 pilot devices are not syncing with Intune. and receive "The sync could not be initiated (0x80190190)" when hitting the sync button from the settings screen. I've tried this The problem is still there

I can get to https://wip.mam.manage.microsoft.com:444/ from the devices, port 444 is open.

The 2 devices have a GUID_windows_Date_Time in the Endpoint.microsoft.com instead of machine name. with 0 additional information.

Only different thing between these 2 machines is that the users for those devices are not licensed for Intune. But it is my understanding based on this, they don’t need to be because it's windows 10 device and should auto enroll with AZ AD token. I am not trying do to stand alone Intune, so I should be good with licensing.

Any clues on where to look?

Thank you!