DCPromo failed error

Posted on 2012-08-30
Last Modified: 2012-10-08
HEllo, i am trying to add a new DC to an existing 2003 functional level domain (running server 2003) and during dcpromo i keep getting the message.

The operation failed because:

Managing the network session with \\ failed

"Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again."

DNS is pointing to the operations master, and it can resolve hostname through ping, i also have a host name in dns already. Also, there are no shares or connections, i created a brand new domain admin just to be sure and it still comes up
Question by:mrbayIt
    LVL 18

    Expert Comment

    by:Sushil Sonawane
    Create a new administrator account logged into the member server with new account then try to run dcpromo.


    Close all session on the server using administrator account and then try to run.

    Author Comment

    hi Sushi, as i said at the bottom of my question ive tried that already
    LVL 39

    Expert Comment

    by:Krzysztof Pytko
    Hm, maybe short and simple question :)

    Do you try to add another Windows Server 2003 Domain Controller ? If so, you don't have to run dcpromo again. It was done and it requires to be executed only once.

    But if you try to add 2008/2008R2 DC then did you try to reboot that server first ? ;) and then try again

    However, if you wish, you may follow an article on my blog for that at

    LVL 3

    Expert Comment

    Which server you are trying to add its server 2008 or 2003  ??
    LVL 11

    Expert Comment

    by:Venugopal N
    Check if all the fsmo roles are operating . Run below command and check the DC which holds the FSMO roles

    netdom query /domain:<>

    Also run the Dcdiag and check for any replication error.

    Accepted Solution

    fixed myself

    Author Closing Comment

    found had to be off domain before i promote

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