Fairly new SQL DBA here.
I discovered the following ERRORLOG message while viewing the logs, it is always the last line of the log:
2008-10-22 12:31:02.98 Server The SQL Network Interface library could not deregister the Service Principal Name (SPN) for the SQL Server service. Error: 0x45b, state: 4. Administrator should deregister this SPN manually to avoid client authentication errors.
This occurs every time SQLServer is shutdown.
Looking for help on how to resolve, thanks.