We have a total of 4 Domain Controllers, all running Windows Server 2003, SP2. I ran DCDIAG on all of them, and only 1 DC displays an error. The other 3 are completely clean.
Here is the error:
There are errors after SYSVOL has been shared
The error is to 1 DC
We're also getting a lot of KDC errors in the application log on this DC, which could explain why our Cisco Secure ACS is not authenticating wireless or VPN users through this DC. This DC is acting as a RADIUS server.
The KDC error event ID are 7 and 20.
The only real issue we're having is with this Cisco Secure ACS authentication via RADIUS. Everyone else authenticates OK.
If anyone can help, it would be much appreciated.