Error 8495: ERROR_DS_CR_IMPOSSIBLE_TO_VALIDATE
Windows Error Code Lookup: Decode Windows error codes: Win32, HRESULT (0x80070005), NTSTATUS, Windows Update, msiexec and blue-screen stop codes, with what to check next.
Paste the number from an error dialog, event log, script or setup log: 0x80070005, 80070005,
-2147024891, 1603, 0xC0000005, a stop code like 0x7E, a name like
E_ACCESSDENIED, or a few words. You get every way Windows could mean that number (an HRESULT often wraps a
Win32 error, so 0x80070005 is "Access is denied" too), its parts decoded, and what to check for the common ones. Names
and messages come from the Windows SDK headers and Windows' own message tables; see Microsoft's
System Error Codes and
[MS-ERREF] for the full references.
Try: 0x80070005, 1603, 0xC0000005, 0x800F081F, 0x8024402C, 0x7E, access denied
0x0000212F = 8,495
Win32 error 8495 (0x212F)
The directory cannot validate the proposed naming context name because it does not hold a replica of the naming context above the proposed naming context. Please ensure that the domain naming master role is held by a server that is configured as a global catalog server, and that the server is up to date with its replication partners. (Applies only to Windows 2000 Domain Naming masters)
As an HRESULT (HRESULT_FROM_WIN32): 0x8007212F