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TCP/IP Issues

By PC Blues ยท 4 replies
Mar 29, 2007
  1. Greetings to your community.
    Have been scouring the net for answers and now it's time to post.

    Initial problem was weak or no connection.
    PC with xp hard wired to netgear router linked to cable modem.
    Shut down firewall, pc, unplug router and modem and rebooted whole sequence.
    Ipconfig release/renew didn't work
    Laptop works via wireless and hardwired.
    Winsockxpfix didn't work.
    ip address listed as
    Windows unable to repair connection.
    manually entered new ip and dns address.
    Still unable to go online.
    Repaired connection with Windows to no avail.
    Pinged to ip address, host name,and laptop successfully.
    Unable to ping dns server using address from Eschelon.com

    Can someone advice the next course of action? Thanks.
  2. jobeard

    jobeard TS Ambassador Posts: 10,432   +801

    Wireless Router Setup

    >Initial problem was weak or no connection. PC with xp hard wired to netgear router linked to cable modem.

    Ok; step by step.

    Turn on the Windows Default Firewall
    and then shutdown the system.
    Then directly connect the modem to the PC and power up.

    get a cmd prompt run->cmd /k
    and enter ipconfig /all

    you should see a line near the bottom like
    DNS Servers . . . . . . . . . . . :​

    if so, try nslookup google.com and it returns something like
    Non-authoritative answer:
    Name: google.com

    Your modem-system connection is just FINE and you could use this,
    but you want wireless.

    Find your Netgear documentation; you need the user/password AND the
    default router address (I show it as Netgear

    Disconnect the modem from the system and connect
    modem -->(wan) router (lan) --> system​
    all with cables.

    you can again see if the system has its TCP connection correct with
    run->cmd /k ipconfig /all
    it should have an address somethink like
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . :
    Subnet Mask . . . . . . . . . . . :​

    if you have an IP address that begins with 169.x.x.x, we're not there yet.
    Otherwise, in your browser URL bar, enter and hit enter
    you get the user/password prompt
    and now you can setup your WIRELESS parms.
    (Find the setting page that allows you to set the SSID)
    Change the SSID to your given name, for example
    BE SURE to change the password, and save the setting.

    For the moment, you can ignore encryption (come back later for last change).


    Disconnect the cable from the router to the system.
    Enable your Wireless device.
    Go to My Computer->Network Places->view network connections
    right-click on the wireless and View Available Wireless
    look for your SSID, select it and Connect.

    You should be connected :)

    Get to this point and we'll go through the encryption stuff ----
  3. PC Blues

    PC Blues TS Rookie Topic Starter

    Thanks for your quick response.
    Had to take a break, this problem is becoming too annoying.
    Every time I think I have it narrowed down, something else pops up.
    Here's a few examples, pc shows limited or no connection when hard wired to router, and no connection when wired to modem.
    Hard wire laptop to modem shows limited to no connection, yesterday there was no problem.
    No problem with the laptop connecting wireless.
    To eliminate the possibility of a bad network card, I installed a wireless card.
    Pc still unable to connect.
    Every time I change out the cables, I cycle off computer, unplug router and modem, reset and start over.
    With laptop set up wireless, I'm able to reach the non-authoritative response as outlined in step one.
    With pc , no dns server is listed .

    Thanks again.
  4. jobeard

    jobeard TS Ambassador Posts: 10,432   +801

    start over and go slowly.

    when you're wired to the router, DISABLE the wireless device and ignore
    it -- use the Network Wizard to create a DIRECT connection.
    Then once you have a connection, you can go back to wireless by
    pulling the cable from the router and ENABLING the wireless device.

    Give it try -- it's not all that difficult if you go slowly :)
  5. PC Blues

    PC Blues TS Rookie Topic Starter

    After all the plugging and unplugging I think I've found the culprit.
    It's either a bad ethernet cable or reciever on the network card.
    I can now get on line when the cable is adjusted just right.

    Thanks for your time and advice.
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