My Network Places browsing

Discussion in 'Server Networking' started by Sylvain Cerat, Mar 22, 2005.

  1. I have 7 Win2k3 server in a subnet 1.2.3.x and all workstation in subnet
    1.2.4-5-6 mask 255.255.252.0.
    My DC1 act as DNS, Master Browser and WINS.
    When i try to browse in My Network Places i only saw those server but no
    workstation.
    If i stop the computer browser service from DC1, DC2 take the place and i
    saw all Workstation and server. DC2 use the WINS from DC1. If i use BROWCON
    it's seem i don't have any Master Browser for the Workstation subnet.
    All working fine until 1 week ago and i don't changed nothink on the server
    and network. My domain is a part of a global domain so if i use DC2 as Master
    Browser i lost all other domain, i know it's normal DC2 doesn't have a Domain
    trusted.
    Someone have any idea?
     
    Sylvain Cerat, Mar 22, 2005
    #1
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  2. Michael Giorgio - MS MVP, Mar 22, 2005
    #2
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  3. BROWCON give me this answer:
    NetBIOS Browsing Console

    System Missing from Domain Master Browser's List

    Diagnosis:

    The domain master browser does not have the missing system in its browse
    list. Because of this, the missing system may also be missing from browse
    lists on other subnet master browsers.

    NOTE: The domain master browser should get the browse list for the missing
    system's subnet from the master browser on that subnet. If the NetBIOS
    Browsing Console also generated a report indicating that the missing system's
    subnet master browser did not have the missing system in its browse list,
    follow that report's suggestions before following the suggestions below.

    Possible Causes:


    This could be due to name resolution problems on the network.

    *

    The subnet master browser must be able to resolve the domain 1Bh
    record in order to send its browse list to the domain master browser.
    *

    The subnet master browser must be able to resolve the PDC's NetBIOS name
    *

    The PDC must be able to resolve the subnet master browser's NetBIOS name
    *

    To verify that both the PDC and the subnet master browser can resolve
    each other's NetBIOS names, map a network drive from the subnet master
    browser to the PDC and from the PDC to the subnet master browser. If mapping
    a drive fails, resolve the name resolution problem causing the failure.

    Note: if the missing system is not in its own subnet master browser's list,
    it will not be in the domain master browser's list either. This is by
    design. Ensure that the missing system is in the browse list on its subnet's
    master browser. The NetBIOS Browsing Console should tell you if this is the
    case.

    Summary:

    The missing system is not in the domain master browser's list. Try to solve
    this problem with the suggestions outlined above.

    But if i stop computer browser on DC1 Dc2 act as server and the test pass
    except and found computer from browse list on DC2 but always not in browse
    list on DC1
     
    Sylvain Cerat, Mar 22, 2005
    #3
  4. You need to start with the missing machine and attempt to map
    to a share on DC1 from that machine first by name then by tcp/ip
    address. If either fails post the exact error.
     
    Michael Giorgio - MS MVP, Mar 22, 2005
    #4
  5. I have no problem to map a share drive by name on DC1.
     
    Sylvain Cerat, Mar 22, 2005
    #5
  6. So which machine is the PDC emulator? Open a dos prompt and
    run nbtstat -n on each machine. The one registering a domain name
    1b unique name for domains is the PDC emulator. That machine
    by default will be the DMB. The DMB must be able to communicate
    with all subnet master browsers.. Each subnet will have 1 machine act
    as the SMB to pass informatioin to the DMB.
     
    Michael Giorgio - MS MVP, Mar 22, 2005
    #6
  7. The DMB is DC1. How i can know which Workstation act as SMB?
     
    Sylvain Cerat, Mar 22, 2005
    #7
  8. Open the WINS Database and sort by name then look for the machine
    registering the domain name 1d name pertaining to that particular subnet.
     
    Michael Giorgio - MS MVP, Mar 22, 2005
    #8
  9. Thanks for your time Michael. I'll found no entry with 1D. I'll try to found
    which computer run computer browser in the subnet.
     
    Sylvain Cerat, Mar 22, 2005
    #9
  10. Once you do then check connectivity from that machine to
    the domain master browser e.g., map first by tcp/ip address
    then by name.
     
    Michael Giorgio - MS MVP, Mar 23, 2005
    #10
  11. I have check all computer in the subnet and i found no computer running
    service computer browser like it write into WINS without no 1D type. When i
    force the service to start on two of them the service shutdown automaticly a
    min after it start. Let me know if i'm wrong but it appear i have no SMB for
    this subnet. It is a way to force one computer to become the SMB?
     
    Sylvain Cerat, Mar 23, 2005
    #11
  12. What is the exact error being registered when the service shuts
    down? Check the system log of the event viewer if you don't
    get an error.
     
    Michael Giorgio - MS MVP, Mar 23, 2005
    #12
  13. I'll found now entry in the event viewer when it close.
     
    Sylvain Cerat, Mar 23, 2005
    #13
  14. I'll found another thing using browstat VWL

    \\BACKUP1 NT 05.02 (W,S,NT,SS,BBR,DFS)
    \\DC1 NT 05.02 (W,S,PDC,TS,NT,MBR,DFS)
    \\DC2 NT 05.02 (W,S,BDC,TS,NT,BBR,DFS)
    \\server1 NT 05.02 (W,S,SQL,NT,SS,BBR,DFS)
    \\DVR1 NT 05.02 (W,S,SQL,NT,SS,BBR,DFS)
    \\FS1 NT 05.02 (W,S,SQL,PQ,NT,SS,BBR,DFS)
    \\server2 NT 05.02 (W,S,SQL,NT,SS,BBR,DFS)
     
    Sylvain Cerat, Mar 23, 2005
    #14
  15. The entry is?

     
    Michael Giorgio - MS MVP, Apr 6, 2005
    #15
  16. Sorry the answer was "NO entry in the event viewer" not "NOW".

    I have done a lot of test with browscon since the last message.

    If i disable computer browser from the PDC/Domain Master Browser DC1, DC2
    act as master browser and all result with BROWCON was good, DC2 found the
    computer name in the browse list but when checkink for domain master
    browser's list the entry was Not FOUND in the browse list.

    I have tried BROWSTAT ANNOUNCE on the PDC but without result. It seem the
    Domain master browser list was corrupt, missing or security right problem to
    retreived list from subnet master browser. It is possible to reset this list?

    Also when DC2 (IPAddress 1.2.3.11), it act as master browser and also as
    Subnet master Browser for 1.2.4-5-6.X in the result of BROWSCON. It probably
    for this reason no WORKSTATION act as SMB because all server are list in the
    subnet as master browser and backup master browser.
    I'm including the BROWSCON result when DC2 act as Master Browser.

    Network Profile
    Domain
    MyDomain
    DC1 1.2.3.10
    Master Browser (1)
    DC2
    Backup Master Browser (6)
    Backup1
    DC2
    Track1
    DVR1
    FS1
    Desk1
    WINS Servers
    1.2.3.10
    Subnet
    Mine
    computer 49911
    Master Browser DC2
    List of all computer
    Backup Browser: DVR1
    Backup Browser: Desk1
    Backup Browser: FS1

    Attempting to find the PDC/Domain Master Browser for domain: My Domain

    PDC/Domain Master Browser: \\DC1

    The PDC identified in the 'Network Profile' appears to be the same as the
    Domain Master Browser currently found on the network

    There are currently 1 subnet Master Browsers on the network for the
    specified domain

    There are currently 6 subnet Backup Master Browsers on the network for the
    specified domain

    Processing remote subnet called mine...
    Successfully connected to agent on TCP port 49911
    Querying agent...

    Subnet master browser on agent's subnet: \\DC2

    Backup Master Browsers on agent's subnet:
    \\DVR1
    \\DESK1
    \\FS1

    Checking browse list on \\DC2 for the missing system called computer

    computer was found in the browse list

    Checking domain master browser's list...
    Checking browse list on \\DC1 for the missing system called computer

    computer was NOT found in the browse list


    When i use BROWSTAT sta when computer browser is start on DC1

    Status for domain My Domain on transport \Device\NetBT_Tcpip_{XXX}
    Browsing is active on domain.
    Master name cannot be determined from GetAdapterStatus. Using \\DC1
    Master browser is running build 3790
    3 backup servers retrieved from master DC1
    \\DC1
    \\DESK1
    \\DC2
    There are 7 servers in domain MyDomain on transport
    \Device\NetBT_Tcpip_{XXX}
    Unable to retrieve server list from DC1: 64

    The same command when computer browser is stop on DC1

    Status for domain My Domain on transport \Device\NetBT_Tcpip_{XXX}
    Browsing is active on domain.
    Master browser name is: DC2
    Master browser is running build 3790
    1 backup servers retrieved from master DC2
    \\DC2
    There are 93 servers in domain MyDomain on transport
    \Device\NetBT_Tcpip_{XXX}
    There are 39 domains in domain My Domain on transport
    \Device\NetBT_Tcpip_{XXX}


    Sorry for the big story but it where i am now, thanks.
     
    Sylvain Cerat, Apr 6, 2005
    #16
  17. Hi Sylvain,

    Okay thanks.

    You *never* want to disable the computer browser service
    on the PDC / PDC emulator because that is the only machine
    which can be the DMB unless you W2k3 or higher, you can
    transfer the PDC eumlator role to another DC on your domain.

    list?

    If you have the computer browser service disabled on the PDC this
    will cause your problem. The PDC will query itself since it is the DMB.
    Have you tried rebuilding the tcp/ip stack on the W2k3
    server? Open the properties of the primary NIC on DC1
    and uncheck tcp/ip then close. Now go back in and re-enable
    tcp/ip. Now run Browstat.
     
    Michael Giorgio - MS MVP, Apr 6, 2005
    #17
  18. I have tried BROWSTAT ANNOUNCE on the PDC but without result. It seem the
    Just to be clear, when i have tried this, the computer browser services was
    start on the PDC. I'm going to rebuilding the tcp/ip stack ASAP and let
    know the result, thanks.
     
    Sylvain Cerat, Apr 6, 2005
    #18
  19. Forgive me if I am repeating because I don't have time to reread the
    entire thread but make sure NetBIOS is enabled on the DC1.
     
    Michael Giorgio - MS MVP, Apr 6, 2005
    #19
  20. Have you tried rebuilding the tcp/ip stack on the W2k3
    Ok i have done this and the problem still. There is the Browscon and
    Browstat status from the subnet and from the server network.

    Network server: 1.2.3.x

    Status for domain MyDomain on transport \Device\NetBT_Tcpip_{XXX}
    Browsing is active on domain.
    Master browser name is: DC1
    Master browser is running build 3790
    3 backup servers retrieved from master DC1
    \\BACKUP1
    \\FS1
    \\DC2
    There are 93 servers in domain MyDomain on transport
    \Device\NetBT_Tcpip_{XXX}
    There are 39 domains in domain MyDomain on transport
    \Device\NetBT_Tcpip_{XXX}
    We saw all computers because the time expiration was not done. But the list
    will be flush when the 3 turn wil be done.

    Subnet 1.2.4-5-6.X mask 255.255.252.0

    Status for domain MyDomain on transport \Device\NetBT_Tcpip_{XXX}
    Browsing is active on domain.
    Master name cannot be determined from GetAdapterStatus. Using \\DESK1
    Master browser is running build 3790
    3 backup servers retrieved from master DESK1
    \\DESK1
    \\DC1
    \\FS1
    There are 93 servers in domain MyDomain on transport
    \Device\NetBT_Tcpip_{XXX}
    There are 39 domains in domain MyDomain on transport
    \Device\NetBT_Tcpip_{XXX}

    Browscon
    Network Profile
    Domain
    MyDomain
    DC1 1.2.3.10
    Master Browser (1)
    DC1
    Backup Master Browser (6)
    Backup1
    DC2
    Track1
    DVR1
    FS1
    Desk1
    WINS Servers
    1.2.3.10
    Subnet
    Mine
    NetBios Browsing Control Agent computer

    Attempting to find the PDC/Domain Master Browser for domain: MyDomain

    PDC/Domain Master Browser: \\DC1

    The PDC identified in the 'Network Profile' appears to be the same as the
    Domain Master Browser currently found on the network

    There are currently 1 subnet Master Browsers on the network for the
    specified domain

    There are currently 6 subnet Backup Master Browsers on the network for the
    specified domain

    Processing remote subnet called mine...
    Successfully connected to agent on TCP port 49911
    Querying agent...
    Subnet master browser on agent's subnet could not be found
    See report for details.

    Checking domain master browser's list...
    Checking browse list on \\DC1 for the missing system called computername

    computername was found in the browse list

    It was found because the expiration time doesn't finish.

    ****Diagnosis:****

    The Master Browser for the specified domain could not be found on the
    agent's subnet. This may mean that there are no members of the specified
    domain on that subnet?

    This problem must be resolved in order for NetBIOS browsing to function
    properly on the subnet for the specified domain.

    HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\Browser\\Parameters\\MaintainServerList

    HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\Browser\\Parameters\\IsDomainMaster

    I have already tried this solution without success i let the computer with
    this parameter enable to force to be master browser 4 day and it never became
    a master browser.

    I understand we have 2 subnet, one for server and one for Workstation.
    Normally we need a master browser in each subnet. But we don't have change
    anything on the network and all working good for near 1 year and one morning
    is doesn't work.

    I found strange when i stop computer browser on the PDC the DC2 became
    master browser for the subnet 1.2.4-5-6.X, no server have ip address in this
    subnet nor DC2. And when i start the computer browser on the PDC, DC2 doesn't
    act as master browser for the subnet 1.2.4-5-6.X.

    I hope that I am enough clear.
     
    Sylvain Cerat, Apr 6, 2005
    #20
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