Unable to complete DCdiag


  • I have recently upgraded my DC to Windows Server 2008 R2. We recently had some authentication issues and up doing dcdiag on one of the DC I found that the dcdiag does not complete. It just sits there:

    Performing initial setup:
       Trying to find home server...
       Home Server = ABCDC
       * Identified AD Forest.

    Any suggestions are welcomed.

    Tuesday, January 29, 2013 9:38 PM


  • In my case it was the case of same mac addresses. 2 DCs were VMs and sysprep did not run successfully and 2 DCs had the same mac address. Hence the issue. 
    • Marked as answer by Anshul_S Thursday, May 30, 2013 4:45 AM
    Thursday, May 30, 2013 4:45 AM

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