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Hello All,<br />
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.<br />
<br />
Here is the error:<br />
Test: frssysvol<br />
There are errors after SYSVOL has been shared<br />
<br />
The error is to 1 DC<br />
<br />
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.<br />
<br />
The KDC error event ID are 7 and 20.<br />
<br />
The only real issue we're having is with this Cisco Secure ACS authentication via RADIUS. Everyone else authenticates OK.<br />
<br />
If anyone can help, it would be much appreciated. <br />
Thanks!<br />
John
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Hello All,
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:
Test: frssysvol
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. 
Thanks!
John

How to interpret DCDIAG results

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).