Added 2nd NIC. Cannot start DHCP server. "Cannot find the DHCP Ser

Discussion in 'Windows Small Business Server' started by jsccorps, Oct 16, 2004.

  1. jsccorps

    jsccorps Guest

    Network was working fine with a single NIC, router/gateway, DSL modem config.

    Had problems with DSN, so took advice and installed a 2nd NIC. However,
    since installing the 2nd NIC, 1) I can access the Internet from the SBS but
    cannot access from the clients, 2) clients don't see the SBS, 3) when I
    attempt to run the Email and Connect to Internet Wizard I get the message "
    the wizard can't set tghe DHCP scope options. Ensure that the DHCP server
    service is running and that the scope is defined. Alternately , disable the
    DHCP service manually, and then configure hyour client computer IP address
    properties"

    When I go to Admin -> Services and try to start the DHCP, it tries to start
    (acts if working) but is not successful. Under Admin -> DHCP there is no
    network server shown. If I try to install one it will not let me (i guess
    since DHCP is not running)

    (There are no IP Address settings of the clients. If I set them manually,
    then I can access the server. Though, I still can't access the Internet from
    the clients.)
     
    jsccorps, Oct 16, 2004
    #1
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  2. Is your router handing out DHCP and thus making the SBS DHCP turn off?
     
    Susan Bradley, CPA aka Ebitz - SBS Rocks [MVP], Oct 16, 2004
    #2
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  3. jsccorps

    Les Connor Guest

    Wrong binding order ?

    Start | Control Panel | Network Connections
    Advanced | Advanced Settings
    Ensure the lan nic is first, and the wan nic is second in order, and that
    the services are enabled on the correct nic. Ensure the nics are connected
    to where you think they are.
     
    Les Connor, Oct 16, 2004
    #3
  4. jsccorps

    jsccorps Guest

    Susan

    There is now no router in the config. With the 2nd NIC I am going straight
    from the DSL modem to the NIC (my understanding is that the SBS will take
    over the router functions).

    jsccorps
     
    jsccorps, Oct 16, 2004
    #4
  5. Yes the SBS External NIC should handle that but if the DSL is PPPoE you may
    encounter Timing issues on server restarts and it is better to have a router
    between the Modem and the External NIC to keep the WAN connection active on
    restarts. See http://www.smallbizserver.net/Default.aspx?tabid=52 for ideal
    diagram. And ck binding order as Les says
     
    Frank McCallister SBS MVP, Oct 16, 2004
    #5
  6. jsccorps

    jsccorps Guest

    1. The binding order is ok (server LAN NIC first, then the exterior NIC)
    2. I don't believe that I'm running PPoE (not required to login/password)
    3. NIC connection should be ok. The exterior NIC's IP address and Default
    Gateway have the appropriate settings, and the DNS server points to my ISP.
    The server LAN NIC seetings look good with the Default Gateway blank.

    Would any of this prevent me from starting the DHCP server? When I try to
    start the DHCP server, initially it looks successful (Start shows up under
    Services) then a few seconds later Start dissapears and it returns to blank.

     
    jsccorps, Oct 16, 2004
    #6
  7. Check in the Event Viewer to see if you are getting an event message stating
    something similar to

    Event ID : 20036
    Source : DHCP Server
    Description: The DHCP Server is shutting down because another DHCP Server
    with IP Address <IP Address> is active on the network.

    If so, one thing you might want to check is the DHCP Server to ensure that
    it is only bound to the internal nic. To check the DHCP bindings go to
    Start/Administrative Tools/DHCP and then right click on the server's name
    and select Properties/Advanced tab/Bindings button. Make sure that only the
    internal nic is checked.


    --

    Hope that helps,
    David Copeland
    Microsoft Small Business Server Support

    This posting is provided "AS IS" with no warranties, and confers no rights.


    SBS Newsgroups:

    SBS v4.x: microsoft.public.backoffice.smallbiz
    SBS 2000: microsoft.public.backoffice.smallbiz2000
    SBS 2003: microsoft.public.windows.server.sbs

     
    David Copeland [MSFT], Oct 16, 2004
    #7
  8. jsccorps

    jsccorps Guest

    When I go to Start/Administrative Tools/DHCP, no Server name shows up. If I
    attempt to install one (the authourized one at 192.168.16.2) it gets so far
    and the Server Name shows up with a red X and the following message:

    "Cannot find DHCP Server. The DHCP server you specified cannot be located,
    there might be network problems, or the DHCP source might not be installed.
    The errror was: The DHCP Server service is not running on the target
    computer ..."

    As I mentioned before when a go to Start/Administrative Tools/Services and
    attempt to start the DHCP service, the system rejects the start request.

    Any ideas?

     
    jsccorps, Oct 16, 2004
    #8
  9. Hi JS,

    Can you post the ipconfig/all from the server please?

    --
    Regards,

    Marina
    Microsoft SBS-MVP

     
    Marina Roos [SBS-MVP], Oct 16, 2004
    #9
  10. jsccorps

    jsccorps Guest

    Server Ipconfig/all:

    Host Name . . . . . . . . . . . . : NETWORK-SERVER
    Primary Dns Suffix . . . . . . . : godoersenterpriseinc.local
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : Yes
    WINS Proxy Enabled. . . . . . . . : Yes
    DNS Suffix Search List. . . . . . : godoersenterpriseinc.local

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) PRO/100 S Server Adapter
    Physical Address. . . . . . . . . : 00-0E-0C-5B-0C-45
    DHCP Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 68.163.73.228
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 68.163.73.228
    DNS Servers . . . . . . . . . . . : 192.168.16.2

    Ethernet adapter Server Local Area Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
    Physical Address. . . . . . . . . : 00-C0-9F-37-F7-78
    DHCP Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.16.2
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . :
    DNS Servers . . . . . . . . . . . : 192.168.16.2
    Primary WINS Server . . . . . . . : 192.168.16.2

    jsccorps

     
    jsccorps, Oct 16, 2004
    #10
  11. Hi JS,

    On your external nic the IP and Gateway is the same. That is not possible.
    Also make sure that Netbios over TCP/IP is disabled on the external nic. You
    will also want to doublecheck the bindingorder.

    --
    Regards,

    Marina
    Microsoft SBS-MVP

     
    Marina Roos [SBS-MVP], Oct 16, 2004
    #11
  12. jsccorps

    jsccorps Guest

    Thanks all"

    I needed to:

    1) Disable DHCP server on the DSL Router'
    2) Correct the Default Gateway setting on the WAN NIC

    Problem solved.

     
    jsccorps, Oct 18, 2004
    #12
  13. Hi JS,

    Great. Thanks for reporting back.

    --
    Regards,

    Marina
    Microsoft SBS-MVP

     
    Marina Roos [SBS-MVP], Oct 18, 2004
    #13
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