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Lost Ip address information

Discussion in 'Networking' started by Susan88, Sep 5, 2007.

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  1. Susan88

    Susan88 Thread Starter

    Sep 5, 2007
    I have a belkin modem/router which is connected to my computer, i also have a laptop which is connected through this. But recently my laptop wont connect to it. I found out that my laptop has an 'invalid ip address'. When i ipconfig on run it brings up no information like it should. i just wanted to know how i can get this information back onto my laptop cos then i can reconnect it to my router, thank you
  2. JohnWill

    JohnWill Retired Moderator

    Oct 19, 2002
    Please supply the following info, exact make and models of the equipment please.

    The name of your ISP and country of residence.
    Make/model of the broadband modem. If dial-up, please specify.
    Make/model of the router (if any).
    Connection type, wired, wireless.
    If wireless, encryption used, (WEP, WPA, WPA2, etc.)
    Make/model of network card or wireless adapter.
    Make/model of your computer (motherboard if home-built).
    Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP2.

    Also, please give an exact description of your problem symptoms, including the exact text of any error messages.

    I'd also like to see this from the laptop and desktop computers.

    Start, Run, CMD to open a command prompt:

    Type the following command:


    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.

    If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.
  3. Bob Cerelli

    Bob Cerelli

    Nov 2, 2002
    It's good that one computer can connect to the Internet. That means the router is at least functioning.

    Is the laptop connected to the router wired or wireless?

    If wireless, can you temporarily connect wired? This is just to help determine where the source of problem might be.
  4. jcbarr


    Dec 17, 2003
    Look in My Network Places and see if any adapters show up. If not then check your device manager to make sure that the device is working properly and the driver has been configured correclty. If still having problems check under the services of your pc and make sure that the I believe it is Network Connections or Network Browsing service is started.

    If all of this looks good then do a google search for netsh, that is a command line option that will allow you to configure the IP address of your LAN adapter from a dos command line. It will also let you export the current settings to a text file so that you can see what IP you are currently using.
  5. Bob Cerelli

    Bob Cerelli

    Nov 2, 2002
    Also check there that it simply hasn't been disabled.
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