PDC Emulator is missing in network browsing list

Discussion in 'Server Networking' started by Ruud de Heij, Feb 16, 2005.

  1. Ruud de Heij

    Ruud de Heij Guest

    Hi everyone,

    This problem is giving me headaches. I have a DC which holds all 5 FSMO
    roles but is not showing up in the browsing list. This DC is the
    masterbrowser for the domain.

    The server is not hidden and is not multihomed.

    I have run through KB188305 and KB231312 but none of the steps has even
    revealed a problem.

    When using the "browstat status" command I noticed that sometimes I get a
    message "Unable to retrieve server list from server01: 64 (net helpmsg 64 =
    The specified network name is no longer available ).

    Running the same command again will give me the list. What does this mean ?

    With netdiag I only get one warning: failed to query SPN registration on DC
    server01; the other tests all pass.

    DcDiag test all pass too.

    Anyone any idea ?

    Thanks.

    Ruud de Heij
    The Netherlands
     
    Ruud de Heij, Feb 16, 2005
    #1
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  2. Make sure netbios is enabled on all problem machines
    and that there is nothing blocking netbios e.g., software
    firewall.
     
    Michael Giorgio - MS MVP, Feb 16, 2005
    #2
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  3. Ruud de Heij

    Ruud de Heij Guest

    Hi,

    Netbios is enabled on all machines; there is no firewall blocking.

    Ruud de Heij

    "Michael Giorgio - MS MVP" schreef:
     
    Ruud de Heij, Feb 17, 2005
    #3
  4. On the PDC emulator open a dos prompt and run nbtstat -n.
    Do you see a domain name 1b unique name for domains?
    Open the WINS database and sort by name then check for
    the 1b name and the the tcp/ip address associated with it.
     
    Michael Giorgio - MVP, Feb 17, 2005
    #4
  5. Ruud de Heij

    Ruud de Heij Guest

    Hi, thanks for your efforts so far !

    The domain name is listed with 1b unique

    In WINS the 1b entry is associated with the correct ip address

    In WINS I have one domain 1E normal group name which points to a workstation
    and a 00 Workgroup pointing to the same workstation.

    I also have two 1C entries:
    * domain 1C Domain controller pointing to the PDC
    * Inet~services 1C Domain controller pointing to our ISA server
     
    Ruud de Heij, Feb 17, 2005
    #5
  6. Why is the ISA a second DC? Either DCPromo it down to a member server,..or
    if it must remain a DC then make sure the binding order is properly set so
    that the Internal NIC is the highest Nic in the priority.

    That may not specifically be your problem, but it is a good place to start
    and that stuff should be "cleaned up" anyway.

    272294 - Active Directory Communication Fails on Multihomed Domain
    Controllers
    http://support.microsoft.com/default.aspx?scid=kb;en-us;272294

    191611 - Symptoms of Multihomed Browsers
    http://support.microsoft.com/default.aspx?scid=kb;EN-US;191611
     
    Phillip Windell, Feb 17, 2005
    #6
  7. Okay do you see a 1D entry either in WINS or the nbtstat -n
    command on the PDC?
     
    Michael Giorgio - MS MVP, Feb 17, 2005
    #7
  8. Phillip the Inet~services 1C name is registered by IIS, it doesn't
    mean that particular machine is a DC.
     
    Michael Giorgio - MS MVP, Feb 17, 2005
    #8
  9. In any case it looks as if the Workstation which is registering
    the 1E entry is attempting to be the SMB or segment master
    browser which will cause a problem since by default he PDC
    / emulator is the SMB or segment master browser. Try disabling
    the comptuer browser service on the workstation and see if the
    PDC emulator takes back the SMB role..
     
    Michael Giorgio - MS MVP, Feb 17, 2005
    #9
  10. Ruud de Heij

    Ruud de Heij Guest

    Hi Philip,
    The ISA server is indeed not a DC. I mentioned here because it look a bit
    strange to me that it was registered as 1C Domain Controller.

    Can I assume that is a normal WINS registration ?
     
    Ruud de Heij, Feb 17, 2005
    #10
  11. Yes, IIS registers this name by default. Back to browsing.. <g>

    All Windows machines during the boot process will send a host name
    announcement packet to it's local SMB every minute at startup then
    at increasing intervals leveling out at every 12 minutes. The SMB
    gathers the local list from all machines on its endpoint and passes
    back to the DMB or domain master browser which queries WINS
    for 1b entries to learn of other domains and get their browse list it
    then merges and passes back to the SMB who makes this list
    available to all machines who request it. Looks as if the PDC
    emulator may be attempting to maintain the local list while others
    are registering with another SMB. Does the problem machine
    show up in its own list? Use netmon.exe to capture the outgoing
    packets from the PDC emulator and see exactly where the host
    name announcement packets are heading.
     
    Michael Giorgio - MS MVP, Feb 17, 2005
    #11
  12. Sorry, I misunderstood.
     
    Phillip Windell, Feb 17, 2005
    #12
  13. Ruud de Heij

    Ruud de Heij Guest

    Hello Michael,

    When restarting WINS the PDC claims the 1E entry, however as soon as a
    workstation register with WINS this workstation claims the 1E entry. These
    workstations are all XP Prof. with SP2.
     
    Ruud de Heij, Feb 18, 2005
    #13
  14. It's quite possible the workstation is the backup master browser
    for the domain. If you disable the computer browser on the XP
    machine it will no longer attempt to maintain the browse list but
    still register with the SMB to make it's presence known. Open
    a dos prompt on the PDC emulator and run nbtstat -n; do you
    see a domain name 1d entry? Not do the same on the client
    machine. Is there a 1d entry?
     
    Michael Giorgio - MS MVP, Feb 18, 2005
    #14
  15. Ruud de Heij

    Ruud de Heij Guest

    I do see a 1D entry on the PDC; on the workstation I do not see a 1D entry
    with nbstat

    "Michael Giorgio - MS MVP" schreef:
     
    Ruud de Heij, Feb 18, 2005
    #15
  16. Does the problem machine show up in its own list? Use netmon.exe to
    capture the outgoing packets from the PDC emulator and see exactly
    where the host name announcement packets are heading.
     
    Michael Giorgio - MS MVP, Feb 18, 2005
    #16
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