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File Sharing over Wired/Wireless Network

Discussion in 'Networking' started by Serj, Feb 22, 2007.

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  1. Serj

    Serj Thread Starter

    Feb 22, 2007
    Ok, first up, here's a diagram to explain my current network set-up, hopefully it will make it a little clearer what I'm talking about :)


    Hooray for paint!

    The problem I'm having is with windows file sharing. The two PCs connected via the wired network can see each other just fine, and file sharing is not a problem.
    However I cannot see any of the workgroup computers from the laptop, which is connected to the network wirelessly via the wireless router.

    I can ping both the wired router and the PCs from the laptop, but trying to ping the laptop from the PC times out.

    Its probably worth pointing out that the laptop can connect to the internet with no problems at all.

    PC 1 : Windows XP SP 2
    PC 2 : Windows Vista Ultimate
    Laptop : Windows XP SP 2

    All the computers are added to the "WORKGROUP" workgroup.

    Summary of Network

    American Robotics Sure Connect Modem Router: IP
    - PC 1 : IP 192.168.1.XX
    - PC 2 : IP (static)
    - Xbox : IP (static)
    - Buffalo Airstation Wireless G Router: IP
    --- Laptop : IP
    --- Nintendo DS
    ---Nintendo Wii

    I doubt its relevant but the wireless network is WEP128 encrypted.

    Any help is appreciated, thanks :)
  2. JohnWill

    JohnWill Retired Moderator

    Oct 19, 2002
    It's the NAT layer in the second router. Try this configuration:

    Connecting two SOHO broadband routers together.

    Configure the IP address of the secondary router to be in the same subnet as the primary router, but out of the range of the DHCP server in the primary router. For instance DHCP server addresses through, I'd assign the secondary router as it's IP address.

    Disable the DHCP server in the secondary router.

    Setup the wireless section just the way you would if it was the primary router.

    Connect from the primary router's LAN port to one of the LAN ports on the secondary router. If there is no uplink port and neither of the routers have auto-sensing ports, use a cross-over cable. Leave the WAN port unconnected!
  3. Serj

    Serj Thread Starter

    Feb 22, 2007
    Ah, yes i suspected that was the problem, and tried to put the second router onto the same subnet, but i neglected to put it out of the range of the IP pool of the first router, so it failed! I guess its pretty obvious now you mention it, but it always is with hindsight ;)

    Thanks a lot for the help, i'll let you know if it worked!
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