0x80180008MENROLL_E_DEVICE_UNKNOWN_ERROR

How to fix it

Check the DeviceManagement-Enterprise-Diagnostics-Provider Admin event log on the device for the failing step and retry the enrolment.

Find it on the device

Enrolment errors are logged in Event Viewer under Applications and Services Logs › Microsoft › Windows › DeviceManagement-Enterprise-Diagnostics-Provider › Admin:

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3Get-WinEvent -LogName "Microsoft-Windows-DeviceManagement-Enterprise-Diagnostics-Provider/Admin" -MaxEvents 200 |
    Where-Object Message -match "0x80180008" |
    Format-List TimeCreated, Id, Message

Other enrollment errors

• 0x8018000A The device is already enrolled.
• 0x8007064C The machine is already enrolled.
• 0x80180026 Something went wrong. Confirm you are using the correct sign-in information...
• 0x8018002B Auto MDM Enroll: Failed (Event ID 76)
• 0x80180003 This user is not authorized to enroll.
• 0x801C0003 This user is not authorized to enroll.
• 0x80180018 Something went wrong.
• 0x80180002 MENROLL_E_DEVICE_AUTHENTICATION_ERROR
• 0x80180001 MENROLL_E_DEVICE_MESSAGE_FORMAT_ERROR
• 0x80180004 MENROLL_E_DEVICE_CERTIFCATEREQUEST_ERROR

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