Failed to register Service Principal Name for exchangeRFR; error code c10379bc.

Aaron was searching around for the Exchange RFR error code c10379bc and found my blog entry about Disaster recovery.  He had sone interesting challenges, and after working through them all worked out that re-applying Service Pack 2 for Exchange  fixed everything.  I’ve reproduced his mail with all of the error messages – just in case you ever get a similar chain of events…

After applying 1 MS update (Windows Server 2003 Hotfix KB921883) and rebooting the server , I got the following 4 errors in the application log.  Shutdown took a LONG time, about 14 minutes according to the system log.  Typical reboot time (time between event log shutdown and event log startup) is usually 50 to 70 seconds.

———- ERROR 1 ———-
Event Type: Error
Event Source: MSExchangeSA
Event Category: General
Event ID: 9317
Date:  8/10/2006
Time:  12:27:09 AM
User:  N/A
Computer: EXCHANGE
Description:
Failed to register Service Principal Name for exchangeRFR; error code was c10379bc.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

———- ERROR 2 ———-
Event Type: Error
Event Source: MSExchangeSA
Event Category: General
Event ID: 9317
Date:  8/10/2006
Time:  12:27:09 AM
User:  N/A
Computer: EXCHANGE
Description:
Failed to register Service Principal Name for exchangeMDB; error code was c10379bc.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

———- ERROR 3 ———-
Event Type: Error
Event Source: MSExchangeSA
Event Category: General
Event ID: 1005
Date:  8/10/2006
Time:  12:27:09 AM
User:  N/A
Computer: EXCHANGE
Description:
Unexpected error No mapping between account names and security IDs was done. Facility: Win32 ID no: c0070534 Microsoft Exchange System Attendant  occurred.

For more information, click http://www.microsoft.com/contentredirect.asp.

———- ERROR 4 ———-
Event Type: Error
Event Source: MSExchangeSA
Event Category: General
Event ID: 9152
Date:  8/10/2006
Time:  12:27:14 AM
User:  N/A
Computer: EXCHANGE
Description:
Microsoft Exchange System Attendant reported an error ‘0xc1034a70’ in its DS Monitoring thread.

For more information, click http://www.microsoft.com/contentredirect.asp.

After reading numerous web pages advocating “restore from backup”, I came across a page suggesting a re-install of Exchange SP2.   I re-installed Exchange SP2, rebooted, and everything worked again.  I rebooted again, just to make sure everything was still OK.  It was, so I backed up the entire system.

Thanks Aaron for a really comprehensive mail and painstaking troubleshooting for me!