A duplicate name exists on the network

Posted on 2005-04-08
Last Modified: 2011-09-20
I have a Windows 2000 domain, and many times have a problem getting it to recognize the name of a workstation on the network.  The message I get is "A duplicate name exists on the network.

One of the workstations I am working on is one I swapped out the hard drive, and am just trying to change the name of the workstation on the network.  I have two other workstations that I am able to login locally to, and actually map network drives, but cannot login to my domain.  Each time I try to change the name I get the validation error that sayas "A duplicate name exists on the network."

Sometimes I have been successful by deleting it from Active Directory on the domain, then going back and renaming the PC.  But right now nothing I try seems to be working.
Question by:bugsyshare
    LVL 57

    Accepted Solution


    On the CLIENT find out its computer name.
    Start > Run > CMD {enter}
    echo %computername%
    Write this down. Go to the domain controller and do the following
    Start > Run > dsa.msc {enter}
    When the Active Directory Users and Computers console opens expand the "Computers" OU and locate the entry that is the same as the name of the client > highlight it and press the delete key.
    Now Go back to the client and try to join the domain.

    isnt the problem

    try running
    LVL 18

    Assisted Solution

    Do you have a wins server? Restart wins service.

    When you see "A duplicate name exists on the network" run netstat -n.
    LVL 7

    Assisted Solution

    turn off the machine whos name you are changing. Ping the machine name you are trying to change it to.
    Do you get a response? If so then a machine is physicaly on the network with the same name.
    LVL 57

    Expert Comment

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