Duplicate Name Exist

By tuant
Dec 1, 2009
  1. Hello,

    Being trying to figure this out

    I have a machine with two nics using two different IP (one for 100mb and the other nicr gigabyte).
    For example:
    ComputerA ip is (100mb) & (gig).

    DNS is setup as:

    When using a second computer on that also on the same gig subnet, typing \\computera-g gives me two erros
    1. No network provider accepted the given network path
    2. You were not connected because a duplicate name exists on the network.

    It works fine if I type just \\computera in RUN command.

    Both machines are on the same domain.
  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Run CCleaner:
    Before running, check: (tick the box) "DNS Cache"

    You can also:
    Start --> Run--> cmd /c ipconfig /all >Desktop\ipconfig.txt < ok>

    And post the ipconfig.txt (on your Desktop) as an attachment [​IMG] here
  3. tuant

    tuant TS Enthusiast Topic Starter Posts: 200

    I've attached the ipconfig file.

    Attached Files:

  4. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    The Ethernet adapter HighSpeed (nicr gigabyte) doesn't have a default gateway
    Confirm the other computer does not have or as the IP address

    You can also run Netsetup on both computers

    And run all these CMDs (Start > Run > CMD) on both computers: (Then Restart)
    Not all commands will be successful
  5. tuant

    tuant TS Enthusiast Topic Starter Posts: 200

    Yes, the gig does not have a gateway so its completely isolated. No other computers have the IP.
    I tried your suggestion, neither works. Interestingly I can ping computera-g but \\computer-g from the run command does not work.
  6. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    I cannot see where the duplicate IP is coming from
    But I would suggest to check all computer have unique IP addresses (you have done this already)
    It may even be worth changing all static IPs to be sequential like: then etc

    Note: On XP its just a matter of running Netsetup, then confirming File and print sharing is enabled

    In later versions of Windows it is the "Public folder" that needs to be shared in "Network and Sharing Center"
    Youu may need to provide Account passwords too
  7. jasonbernal

    jasonbernal TS Rookie Posts: 24

    is theis computer an image of another one that is on the network? that would cause this error
  8. tuant

    tuant TS Enthusiast Topic Starter Posts: 200

    Thanks, i can't seem to figure this one out as well. I'm confident all machines on the domain have a unique IP address.

    I have a generic image which I use then after wards I change the hostname and IP accordingly before connecting to the network. You think this might be root cause?
  9. jasonbernal

    jasonbernal TS Rookie Posts: 24

    It is not the IP address, it is the computer name, if you used an image, they both have the same computer name on the network causing the problem. You re load one and the problem goes away.
  10. tuant

    tuant TS Enthusiast Topic Starter Posts: 200

    After loading an image, the hostname/computer is immediately changed including the SID so every computer has a unique name. The file server I'm trying to access (Windows 2003 svr) but can't was not created from image.

    Ping computer-g resolves to the correct IP
    Ping -a IP resolves to the correct host

    however run => \\computer-g gives two errors mentioned above
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