troubleshooting Question

Help with Event 11 "KDC encountered duplicate names while processing a Kerberos authentication"

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ITRSupportFlag for United States of America asked on
Active DirectoryMicrosoft SQL Server 2008Windows Server 2008
3 Comments1 Solution399 ViewsLast Modified:

  I have come across this event log entry below. The server in question is a SQL 2008 server running our primary databases. As of now, no problem are being reported by end users. Microsoft has an article addressing this problem but it doesn't state what could be the risks in completing these steps.

 Has anyone run into this problem and did the technet article resolve the problem without incident?

Log Name:      System
Source:        Microsoft-Windows-Kerberos-Key-Distribution-Center
Date:          2/14/2012 2:55:20 PM
Event ID:      11
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      WSEDC02.xxxxxx.local
The KDC encountered duplicate names while processing a Kerberos authentication request. The duplicate name is MSSQLSvc/werisk1.xxxxxx.local:1433 (of type DS_SERVICE_PRINCIPAL_NAME). This may result in authentication failures or downgrades to NTLM. In order to prevent this from occuring remove the duplicate entries for MSSQLSvc/werisk1.xxxxx.local:1433 in Active Directory.
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