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Problem with Master Browser - MRxSmb event ID 8003 problem

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  • Problem with Master Browser - MRxSmb event ID 8003 problem

    Hello,

    I have a problem which you’ve probably heard a lot of – master browser – I keep getting error – MRxSmb event ID 8003. Before deciding to ask for any ideas I spent day googling and trying to solve it. What I did:
    1. I switched the computer browser service on PC which “belived that it was the master browser” but few minutes after I get the same error but from another PC (random).
    2. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Browser\Parameters\IsDomainMaster to TRUE – no joy – still getting the same error.
    3. Restarted DC.
    4. Additional info: there are 3 subnets in our network, WINS server (running on DC), there are many laptops machines (so wireless and Ethernet cards..).

    No joy – I keep getting the same errors in DC log. I used browstat:
    1. browstat.exe status:

    ------------------------------------------------------------------------------------------------------
    Status for domain UTT on transport \Device\NetBT_Tcpip_{ED0EF83B-C300-450C-9DE1-
    83F51F365392}
    Browsing is active on domain.
    Master browser name is: UTT-DC1
    Master browser is running build 3790
    3 backup servers retrieved from master UTT-DC1
    \\UTT-FS0
    \\UTT-DC1
    \\UTT-FS04
    There are 148 servers in domain UTT on transport \Device\NetBT_Tcpip_{ED0EF8
    3B-C300-450C-9DE1-83F51F365392}
    There are 1 domains in domain UTT on transport \Device\NetBT_Tcpip_{ED0EF83B
    -C300-450C-9DE1-83F51F365392}
    -------------------------------------------------------------------------------------------------------

    The backup servers seems to be changing quite often – I don’t know if it should be like that.

    2. What worries me if I use command “browstat status \\UTT-DC1” I do not get a response:

    -------------------------------------------------------------------------------------------------------
    C:\>Browstat.exe status \\UTT-DC1


    Status for domain \\utt-dc1 on transport \Device\NetBT_Tcpip_{ED0EF83B-C300-450C-
    9DE1-83F51F365392}
    Browsing is NOT active on domain.
    Master name cannot be determined from GetAdapterStatus.
    -------------------------------------------------------------------------------------------------------

    Any ideas what shall I do? I’ve read that I can use GP to switch off Computer Browser service on all PC. Shall I go for this option? What happens if there is no computer on different subnetwork with Computer Browser running – will I still be able to use all PCs in My Network Places?

    Sorry for such a long post but I wanted to put as many details as possible.

    Thank you for your help.

    Marcin.

  • #2
    Re: Problem with Master Browser - MRxSmb event ID 8003 problem

    Hi marcin

    We could do with a little more information about your setup.

    You mention WINS being on the DC. Is the DC the PDC for the domain?

    Also, do you have DHCP and DNS running on the same server. And, do you have anything else setup on it?

    If you have an AD domain setup the clients should automatically send browse requests to the PDC. The PDC, and any other DC's in your domain should have MaintainServerList set to yes. The IsDomainMaster should be set to true only on the PDC, and to False on the other DC's/servers.
    A recent poll suggests that 6 out of 7 dwarfs are not happy

    Comment


    • #3
      Re: Problem with Master Browser - MRxSmb event ID 8003 problem

      Hi there,

      thanks for reply. More info as follows:
      1. DC1 - win 2003 server, holding all FSMO roles, DHCP and WINS
      2. DC2 - WINS
      3. MaintainServerList and IsDomainMaster set to 'yes' and 'true'

      In the DC logs I got the errors from XP and Win 2003 machine - one at a time. So for example:
      1. I am getting error with event id 8003 for Machine1.
      2. I switch off computer browser on Machine1.
      3. After some time (less than an hour) I get 8003 in DC logs but from different machine.

      That is why I asked if I shall switch off computer browser with GP help on all PC's?

      But I am sure that it work fine with current config for a long time...

      I am really run out of ideas

      Thank you very much for your help.
      Marcin.

      Comment


      • #4
        Re: Problem with Master Browser - MRxSmb event ID 8003 problem

        Have you seen this MS article:

        http://support.microsoft.com/kb/190930/en-us
        A recent poll suggests that 6 out of 7 dwarfs are not happy

        Comment


        • #5
          Re: Problem with Master Browser - MRxSmb event ID 8003 problem

          Hello,

          we use ip helper on our router for DHCP and Altiris. I will use:
          no ip forward-protocol udp netbios-ns
          no ip forward-protocol udp netbios-dgm
          Maybe it will help. I will let you know. Strange thing is that we didn't have such problems in the past but we have them now, why????

          Thanks.
          Marcin.

          Comment


          • #6
            Re: Problem with Master Browser - MRxSmb event ID 8003 problem

            Well, something must have changed. Has the firmware of your router(s) been upgraded recently? Or perhaps, the firewall rules have been modified?

            I have seen some unexpected behaviour as a result of upgrading router firmware and changing firewall/application rules in security software where communication to a DC was inhibited but not permanently cut off.

            If you discover what the cause is, please post back.

            Cheers!
            A recent poll suggests that 6 out of 7 dwarfs are not happy

            Comment


            • #7
              Re: Problem with Master Browser - MRxSmb event ID 8003 problem

              Hello,

              no ip forward-protocol udp netbios-ns
              no ip forward-protocol udp netbios-dgm

              worked for me!!

              Thanks for your help.

              Regards,
              Marcin.

              Comment


              • #8
                Re: Problem with Master Browser - MRxSmb event ID 8003 problem

                That's cool. Looks like we both got our browser problems sorted out!
                A recent poll suggests that 6 out of 7 dwarfs are not happy

                Comment

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