Duplicate Name exists on the network

Discussion in 'Server Networking' started by Mikey, Aug 7, 2006.

  1. Mikey

    Mikey Guest

    I am having a possible WINS problem. Every morning when the office boots up
    their computers we get "A duplicate name exists on the network". I know that
    there are not any duplicate names because I can get rid of the error by
    simply deleting the workgroup registration of mydomain in the WINS active
    registrations. When I reboot my computer the error message is gone my PC's
    IP address becomes the workgroup registration in WINS with the WINS server is
    the owner. It appears that the next PC that gets booted up becomes the
    workgroup registation and this continues on working OK throughout the day.
    By the next morning there is a static entry for the workgroup type with the
    WINS server as the IP address and a server in another domain as the owner and
    then the message is back.

    What should be the default or best practices enty's for a domain? I have
    Workgroup, Domain Master Browser, Domain Controller and Normal Group Name.
    Only Domain Controller is static. When I compare to other domains in WINS
    they have the same entry's, but Domain Controller and Domain Master Browser
    are static. How do these entry's become static? How can I trouble shoot or
    fix my Workgroup problem

    Thank you
     
    Mikey, Aug 7, 2006
    #1
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  2. If you have a workgroup with the same name as your domain
    then you do have duplicate names.
     
    Michael Giorgio - MVP, Aug 8, 2006
    #2
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  3. Mikey

    Mikey Guest

    Thanks for the reply

    I paid more attention this morning and found out that the static entry that
    takes place overnight is a workstation entry and when I delete it, it becomes
    a workgroup entry.

    Any ideas?
     
    Mikey, Aug 8, 2006
    #3
  4. Not without more details. Event Id as well as the description.
    Do you have a domain model? If so do you have standalone
    machines that are not domain members? If yes, do you have
    their workgroup names the same as the domain name? How
    about the computer name? Do you have usernames that match
    the computer name? The are lots of reasons for your error and
    it can be difficult to diagnose.
     
    Michael Giorgio - MS MVP, Aug 8, 2006
    #4
  5. Mikey

    Mikey Guest

    The event I get on the PC is:

    Event Type: Warning
    Event Source: MRxSmb
    Event Category: None
    Event ID: 3032
    Date: 8/8/2006
    Time: 7:47:41 AM
    User: N/A
    Computer: WORKSTATION
    Description:
    The redirector was unable to register the domain MYDOMAIN on to transport
    NetBT_Tcpip_{CF22B358-AEFD-4AE7-81EB-BAA for the following reason: .
    Transport has been taken offline.

    For more information, see Help and Support Center at
    http://go.microsoft.com/fwlink/events.asp.
    Data:
    0000: 00 00 00 00 04 00 4e 00 ......N.
    0008: 00 00 00 00 d8 0b 00 80 ....Ø..€
    0010: 00 00 00 00 bd 00 00 c0 ....½..À
    0018: 00 00 00 00 00 00 00 00 ........
    0020: 00 00 00 00 00 00 00 00 ........

    Followed by

    Event Type: Error
    Event Source: NetBT
    Event Category: None
    Event ID: 4321
    Date: 8/8/2006
    Time: 7:47:41 AM
    User: N/A
    Computer: WORKSTATION
    Description:

    The name "MYDOMAIN :0" could not be registered on the Interface
    with IP address 'Workstation IP'. The machine with the IP address "WINS
    server IP' did not allow the name to be claimed by this machine.

    For more information, see Help and Support Center at
    http://go.microsoft.com/fwlink/events.asp.
    Data:
    0000: 00 00 00 00 04 00 56 00 ......V.
    0008: 00 00 00 00 e1 10 00 c0 ....á..À
    0010: 01 01 00 00 01 00 00 c0 .......À
    0018: 00 00 00 00 00 00 00 00 ........
    0020: 00 00 00 00 00 00 00 00 ........

    There should not be any machines with a workgroup name the same as the
    domain name. Some machines are in another domain.
     
    Mikey, Aug 8, 2006
    #5
  6. Michael Giorgio - MS MVP, Aug 8, 2006
    #6
  7. Mikey

    Mikey Guest

    I was able to resolve this issue by tombstoning the static entry that was on
    a replication partner. Then I deleted each entry on every replication
    partner.

    Thanks for the reply's.
     
    Mikey, Aug 11, 2006
    #7
  8. Glad to hear. I failed to mention static entries in WINS are not
    recommended. The whole point of WINS is dynamic NetBIOS
    name resolution.
     
    Michael Giorgio - MS MVP, Aug 14, 2006
    #8
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