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Unable to complete DCdiag

    Question

  • 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.

    • Moved by Santosh BhandarkarModerator Wednesday, January 30, 2013 8:18 AM moving this thread more appropriate forum from Server General
    Tuesday, January 29, 2013 9:38 PM

Answers

  • 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

All replies

  • Do you have another DC in your domain, or it's the only's one ?

    Missing some FSMO's role maybe or a DNS's issue.


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    Wednesday, January 30, 2013 4:29 AM
  • check out this blog: http://blogs.technet.com/b/askds/archive/2011/03/22/what-does-dcdiag-actually-do.aspx

    Every second counts..make use of it.

    Wednesday, January 30, 2013 5:22 AM
  • 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.

    Please refer similar discussion

    “The RPC Server is unavailable” when replicating domain controllers


    Regards, Santosh

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    Wednesday, January 30, 2013 8:16 AM
    Moderator

  • Server 2008 R2 - DCDIAG problem - no output??
    http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/ffa639ff-842c-4b9d-92a1-ffb83f019bfe


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    Sandesh Dubey.

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    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

    Wednesday, January 30, 2013 9:46 AM
  • 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