"Network cable is unplugged" but its really not..

By sadgyrl514
Jun 14, 2011
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  1. I have a desktop computer that is running on Windows Xp, up until this morning, everything was fine, I could connect to the internet with no problem.

    I turned on my computer, and it is telling me that the network cable is unplugged, as well as my network is not showing when i go to "my network connections"

    But yet.....

    I AM connected to my router, and there is no problem with the cord (I tried it on different computers as well as my Xbox 360 on the same port....so I know its not the router)....when I go into device manager, everything seems to be working correctly, and my network adapter and ethernet card both are marked as working properly.

    Any ideas how I can fix this issue ?
  2. Jude

    Jude Newcomer, in training

    Try rebooting,
  3. sadgyrl514

    sadgyrl514 Newcomer, in training Topic Starter Posts: 28

    Rebooting ? You mean system restore ?
  4. akannitaoheed

    akannitaoheed Newcomer, in training Posts: 99

    Reboot means restart. Turn it off then on again,
  5. sadgyrl514

    sadgyrl514 Newcomer, in training Topic Starter Posts: 28

    I did that, so many times I lost count..... I also tried a system restore with no help.

    Dunno if this helps anyone help me, BUT....I tried plugging the ethernet cord from my modem to my computer instead of the router, and it connected, BUT it said something about there being limited connection/resources. No idea what that means.
  6. jobeard

    jobeard TS Ambassador Posts: 13,336   +293

    limited is related to the 169.x.x.x ip address

    VERIFY that you have good drivers

    right-click My Computer->Manage->expand Device Manager
    [+] expand Network Adapters

    now look for YELLOW or RED marks; Fix each or any found
    First choice is to dbl-click on the device
    click the Driver; click Uninstall
    when all necessary are uninstalled

    reboot the system and let Microsoft look for the proper driver

    Second Choice is to click on Update Driver
    (but this needs an internet connection to work at all)
  7. ravisunny2

    ravisunny2 TS Ambassador Posts: 2,057   +8

    In addition to what jb has pointed out, sometimes a defective/loose cable can also cause the problem intermittently.
  8. akannitaoheed

    akannitaoheed Newcomer, in training Posts: 99

    Check these out on the system:

    1) Make sure you haven't changed any IP address settings after the problem started. If you have, revert to the initial config.

    2) Get another ethernet cable you are sure is OK to substitute at every connection point to eliminate a bad cable in case there is one. Also make sure you are not using a 'cross over' cable where you should be using a 'straight through' cable.

    3) If the first two steps still didn't make any positive change, open your cpu after a proper shut down of the system, remove the NIC card if it is not on-board, clean it and clean the slot where you removed it from with a clean paint brush. Reinstall it back firmly then boot up the system. If the same still occurs, get a new NIC card to install on your system.
  9. HappyGilmore

    HappyGilmore Newcomer, in training

    Try updating/replacing your network card drivers.

    I had a problem at my work a few months ago where a bunch of my machines would start dropping of the network saying they were disconnected. Lights on the NIC had gone out, reboot wouldn't fix it either and the only way to get them working was to remove the power cable for 10 seconds to discharge the board.

    Eventually tracked it down to a version of the Realtek network drivers were were using. Once I replaced them with a newer driver the problems went away.

    Give that a try.
  10. nfiniti9

    nfiniti9 Newcomer, in training Posts: 38

    When this happens generally removing and reinstalling the driver will fix it. It was probably your security software getting messed up or malware. If you use a firewall in your AV program this is what likely caused it. IMO run an AV program without an advanced firewall, windows firewall is more than fine. You may have to end up running AppRemover to get rid of the internet security program and reinstall it or another. I'd recommend MSE or Avira.
  11. akannitaoheed

    akannitaoheed Newcomer, in training Posts: 99

    Wrong settings on your security software may also be a cause. I forgot to mention that in my previous post. Check firewall and antivirus settings too if you have recently made changes on them.
     
  12. jobeard

    jobeard TS Ambassador Posts: 13,336   +293

    While an A/V or firewall can impact access to the network, they would not cause
    the symptom being reported {cable unplugged} as that is at the link layer and the software is above that.

    I would bet on a bad driver or a bad TCP stack (google for LSPFIX)
  13. sh4d6016

    sh4d6016 Newcomer, in training

    you should try reinstalling the driver first and then check if the light on the NIC is flashing


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