Microsoft KB Archive/244979

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The information in this article applies to:


 * Microsoft Windows NT 4.0

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SYMPTOMS
When you try to manually synchronize the domain from a primary domain controller (PDC) that is running Microsoft Windows NT Server 4.0, Event Viewer may record the following events on the backup domain controller (BDC):

Event ID 5722:

The session setup from the computer computer name failed to authenticate. Access Denied

Event ID 5718:

The full synchronization replication of the SAM database from the primary domain controller PDC name failed with the following error:

The specified user does not exist.

CAUSE
This behavior can occur if the Security Accounts Manager (SAM) database on the BDC is corrupted.

RESOLUTION
To resolve this issue, restore the SAM database on the BDC:

At the BDC, install a parallel installation of Windows NT Server 4.0 into a temporary folder named Wintemp. Perform only a minimum installation.

Restart the computer using the parallel installation, and then start Command Prompt.

At the command prompt, go to the %SystemRoot%\System32\Config folder of the original installation.

Copy the SAM and Sam.log files into a temporary folder named Oldsam.

Delete the SAM and Sam.log files from the %SystemRoot%\System32\Config folder of the original installation.

Restart the computer to the original installation, and then log on to the network using the Administrator account and a blank password.

Specify the original installation as the System Startup default:

 In Control Panel, double-click System. Click the Startup/Shutdown tab. In the System Startup list, click the original Windows NT Server 4.0 installation, and then click OK. Close Control Panel.

To restore the SAM on the BDC, synchronize the entire domain:

 In the Server Manager list, click the PDC. On the Computer menu, click Synchronize Entire Domain, and then click OK.

MORE INFORMATION
To delete the SAM and the Sam.log files, you must start the computer either in MS-DOS or in a parallel installation of Windows NT Server 4.0; if you install Windows NT Server on an NTFS file system partition, you must start the computer in the parallel installation.

For additional information about domain synchronization, please see the following articles in the Microsoft Knowledge Base:

"Q172302 Domain Synchronization Fails With 5730 or 5731 and 5716" "Q173882 Netlogon Synchronization Errors" Additional query words: nt 4.0 synchronization push

Keywords         : nt 4.0 Version          : winnt:4.0 Platform         : winnt Issue type       : kbprb
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