Forum Discussion
Some devices not registering with Intune
- Oct 10, 2025
Hy,
i suppose your Intune Tenant is already configured at this point, but check this to be sure:
https://learn.microsoft.com/en-us/intune/intune-service/fundamentals/mdm-authority-set
Check for enrollment restrictions under Intune | Devices | Enrollment
Check also if you have a Conditional Access Policy that could block this, restrictions like device platform, OS version, or group membership.
Check also GPO inheritance is blocked, or devices aren’t in the correct OU.
Good luck!
Hi TomCSB,
A few things to double-check:
- Make sure the devices are syncing to Azure AD through AD Connect - if they’re not visible there, Intune enrollment won’t start.
- Confirm the MDM GPO is actually applied to all target machines (gpresult /r helps).
On one of the affected devices, check the registry:
HKLM\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\MDM
AutoEnrollMDM = 1
UseAADCredentialType = 1
- Ensure users sign in with their UPN and have a connection to Azure when logging in - dsregcmd /status will show if the device is joined and enrolled.
- Also, do you have SCCM or another management tool in place? Co-management settings can block auto-enrollment.
Let me know if this helps. Thanks.