NetBT Event ID 4321 Error in System log

Discussion in 'DNS Server' started by rileymartin, Mar 1, 2008.

  1. rileymartin

    rileymartin Guest


    I can't find any useful information on the below listed error that
    I'm getting on a DC at a remote site. Has anyone had this issue before or
    know what causes it? Thanks.

    The name "MYDOMAIN :1d" could not be registered on the Interface with IP
    address The machine with the IP address did not
    allow the name to be claimed by this machine.

    All FSMO roles are located on
    rileymartin, Mar 1, 2008
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  2. Meinolf Weber, Mar 1, 2008
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  3. rileymartin

    rileymartin Guest

    Thanks! I never heard of that website. It looks like it will come in very
    handy. One of those posts led me to the fix for my problem. I thoght I was
    just forwarding DHCP requests on the router however I was forwarding the
    NetBIOS broadcasts unknowingly as well. As a result another DC was
    preventing this DC from becomming the segment master browser. As soon as I
    blocked the NetBT broadcasts the problem went away. Thanks again.
    rileymartin, Mar 2, 2008
  4. Hello rileymartin,

    Yes this website is really helpful, even if you are not a member. Nice to
    hear that you find your solution.

    Best regards

    Meinolf Weber
    Meinolf Weber, Mar 2, 2008
  5. rileymartin

    thejamie Guest

    This is an older post and the answer is directed toward machines on a domain
    rather than a xp workgroup, but the error, 4321 is the same on a machine in
    our workgroup. In our case, it is a xp HOME machine on a xp PRO network.
    Several things changed recently, a new anti-virus on the XP Home machine, a
    laptop fan repair, another machine added to the network (a Windows 7 machine
    which may be using IPv6 and not IPv4).

    The HOME machine, a Dell laptop, started jumping from its standard IP
    address of to and then later when that failed,
    it started up a I thought about hard coding the IP address
    into the network card, but it seems to be a problem because, I for one cannot
    remember that the card has a hard coded IP address and it takes time to
    figure that out when there are other workgroup issues so I prefer to leave
    the wireless NIC card set to auto-resolve.

    The name "MSHOME :1d" could not be registered on the Interface with
    IP address The machine with the IP address did
    not allow the name to be claimed by this machine.

    Given these circumstances, the 4321 Event ID appears because the XP Pro,
    owner of the workgroup, doesn't recognize the laptop under the new IP
    address. The laptop wireless doesn't understand what is blocking it, drops
    the wireless connection and tries to pick it up again, or will try to find a
    new IP address that is not blocked and the whole mess just repeats itself.

    One suggested solution is to dump the workgroup, create a new one and re-add
    the machines to the new workgroup. This appears to be a temporary solution
    and disturbs others on the workgroup who do not have this problem.

    The solution might be to alter the hosts file in the XP Pro machine, owner
    of the workgroup. I would do this, as it seems a decent solution, then when
    the HOME machine jumps to a new IP, the hosts file can be changed to
    accomodate the renegade HOME machine.

    My question is more of security. Is using an old (pre-IPSEC ??) solution to
    resolve this, secure? We are behind a NAT. All machines run Zone Alarm.
    The XP Pro runs CA, Windows 7 - Avast, and the Windows HOME runs AVG.

    Is there a way to enable NetBIOS on the HOME laptop that I am missing?
    Would that be a more viable solution? Any suggestions appreciated. There
    does not appear to be one solution that solves everything.
    thejamie, Nov 7, 2009
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