This article describes an update that is available to add service account service principal name (SPN) information to the Reporting Services log file.
Note After you apply this update, diagnostic information is created that can help troubleshoot Kerberos authentication issues.
This update is available in Microsoft SQL Server 2008 Service Pack 3. For more information about the service pack, click the following article number to view the article in the Microsoft Knowledge Base:
2546951 List of the bugs that are fixed in SQL Server 2008 Service Pack 3
After you apply this update, you can find the SPN output in the Reporting Services log file. For a default instance of SQL that is installed to drive C, the default location for the log file is as follows: