JSI Tip 2439. Windows NT 4.0 Netlogon error can be caused by missing/incorrect RPC registry value.

When you logon to a domain from Windows NT 4.0, you may receive:

The system could not log you on to this domain because the system's computer account in its primary domain is missing or the password on that account is incorrect.

Using Server Manager, or NETDOM, to reset the account has no effect on the problem.

Use Regedt32 to navigate to:

HKEY_LOCAL_MACHINESoftwareMicrosoftRPCSecurityService

Verify the following:

Value Name: 68Data Type: REG_SZData Value: netlogon.dll

If you make a change, shutdown and restart Windows NT.

NOTE: The above error may generate the following event log entries:

Event Type: ErrorEvent Source: NETLOGONEvent Category: NoneEvent ID: 3224Description: Changing machine account password for account  failed with the following error:              The authentication service is unknown. Event Type: ErrorEvent Source: NETLOGONEvent Category: NoneEvent ID: 3210Description: Failed to authenticate with \, a Windows NT domain controller for domain .