Windows Forum

Ask something
Discussion Locked

SP6 upgrade failure....

0 helpful
5 replies

by robert.hoover

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.

Event Viewer Event ID: 5702

"NetLogon service could not add the RPC interface The service was terminated. The Following error occurred:
The Authentication service is unknown."

This occurred while trying to do a Service Pack Upgrade to SP6a.

The result is that replication of administrative services is no longer taking place.

Does anyone know how to resolve this problem without having to rebuild the PDC?

Thanks in advance.

5 replies

by ntoz

When installing your service pack it should have asked you if you wanted to make a backup of your system. If you allowed it to make this backup, you should have an uninstall directory from which you can remove the service pack. If you didnt select this option, you should be able to reinstall the Windows NT 4.0 software over the current install and when your finished, apply the previous service pack. I would demote this system to a BDC and promote one of your backup domain controlers to PDC before you do this though, if possible. You can also take the PDC off line and force the promotion of your BDC to PDC to handle traffic while its off line. MAKE sure you demote the PDC to a BDC before returning it to the network or you will have problems. You can see information on this by looking at Microsofts KB Q112549

by baadil

Before I would go to any extremem measures, I would do the following:
* If there is an i386 folder on the server, move it somewhere where it is not in the location defined in the path statement.
* Reinstall the service pack 6a.

Moving the filesis important as I have seen Win NT going to i386 location and copying older files on top of the newer ones. And reinstalling SP has also brought back lots of dead servers.

HTH

This discussion is closed to new replies.