troubleshooting Question

Kerberos and SPN problems

Avatar of Ampletrix
AmpletrixFlag for Australia asked on
Microsoft Server OSWindows Server 2003
3 Comments1 Solution5109 ViewsLast Modified:
I get hundreds of Event ID: 4 Source: Kerberos on my SCCM server. This server is a Windows Server 2003 R2 (SP2).
The event error is:
The kerberos client received a KRB_AP_ERR_MODIFIED error from the
server (ComputerName)$.  The target name used was RPCSS/(ComputerName2.ACT.LCM). This
indicates that the password used to encrypt the kerberos service ticket
is different than that on the target server. Commonly, this is due to identically named
machine accounts in the target realm (ACT.LCM), and the client realm.  
Please contact your system administrator.

Every error has a different server name ending with a $ sign. The RPCSS/Computer name is also never the same computer, and it's killing me!

How do I fix all these errors? Please help!

I have had a look at the SPN sites from Microsoft, but I'm not getting and concrete help or indication what's causing this.
The SPN query site helped a bit, but this is for one error at a time:


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