OM 2012: SQL Server cannot authenticate using Kerberos because the Service Principal Name (SPN) is missing, misplaced, or duplicated.

I'm getting this dreaded error and followed the setspn command but I'm still seeing this one. Do I have to perform any ADSIEdit surgery?

Background: SQL was installed using local admin account (bad) and I installed OM 2012 and ran into issues. So he built me another VM using the same name, I installed OM 2012 fine, but now seeing this infamous error most likely due to previous install?

Should I just be lazy and start over with a different server name? Or try to remove SPN from AD somehow?

The setspn is just not working, rebooted, still no go. Argh.

Thanks for any advice.

http://thoughtsonopsmgr.blogspot.com/2012/04/scom-r2-alert-sql-server-cannot.html