ERROR_DS_INVALID_NAME_FOR_SPN 0x8007216A

Error code 8554 · HRESULT 0x8007216A

WINDOWS

A Service Principal Name (SPN) could not be constructed because the provided hostname is not in the necessary format.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_DS_INVALID_NAME_FOR_SPN is a Windows error code (system error 8554, returned as HRESULT 0x8007216A) reported by Windows. Its official message is: “A Service Principal Name (SPN) could not be constructed because the provided hostname is not in the necessary format.”

How to fix ERROR_DS_INVALID_NAME_FOR_SPN

  1. Reboot once — many one-off system codes disappear with a clean restart
  2. Repair system files: 'sfc /scannow' then 'DISM /Online /Cleanup-Image /RestoreHealth'
  3. Find the source in Event Viewer → System: filter for this exact code and open its provider link

Related errors

ERROR_DS_INVALID_GROUP_TYPEERROR_DS_INVALID_SCRIPTERROR_DS_INVALID_SEARCH_FLAGERROR_DS_INVALID_SEARCH_FLAG_SUBTREEERROR_DS_CANT_CREATE_IN_NONDOMAIN_NCERROR_DS_FILTER_USES_CONTRUCTED_ATTRSERROR_DS_SOURCE_AUDITING_NOT_ENABLED

Source: Microsoft WinError.h

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