Invalid_Client error when joining Windows 10 device to Azure AD tenant


When trying to join a Windows 10 or Windows 11 device to the Azure AD tenant using Settings > Access Work or School > Connect > Join this Device to Azure AD , you may get invalid_client error.

Something went wrong.

Looks like we can’t connect to the URL for your organization’s MDM terms of use. Try again, or contact your system administrator with the problem information from this page.

Error: Invalid_Client

Description: Failed to authenticate user

Failed to authenticate user | invalid_client error



Cause & Solution

The invalid client error may occur due to various reasons. Please check the following things if you encounter a similar issue.

1. Validate automatic MDM enrollment settings

If a user is configured to automatically enroll into Microsoft Intune when the device is joined to Microsoft Entra ID ( Formerly Azure Active Directory (AAD)) then Intune enrollment becomes mandatory during Azure AD Join. The device will not be joined to Azure AD if MDM enrollment fails.

Please check if MDM scopes are configured by the below steps.

Go to Microsoft Intune admin center > Devices > Windows > Automatic Enrollment to check the settings.

MDM user scope should be configured to Some or All. If the configuration is set to Some, then check if a user is a member of the Entra ID group scope is configured for.

Microsoft Intune Automatic Enrollment

2. Check if the Microsoft Intune license was assigned to the user

The user must have Microsoft Intune and Active Directory Premium P2 license assigned. You can validate this from the Microsoft Endpoint Manager admin center / Users / <User Name>/ License.

You may have to wait for 10-15 minutes if getting the same error even after the license assignment.


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