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    Ethernet card not detected

    Discussion in 'Acer' started by fred2028, Sep 25, 2008.

  1. fred2028

    fred2028 Sexy member

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    This recently happened. My laptop doesn't detect my ethernet card, so when I plug a cable in, only the yellow light at the top left of the port flashes, whereas the green light at the top right of the port does not light up. I get no signal at all. In Network Connections it shows that I only have a Wireless Connection and not LAN. Device Manager shows 3 Unknown Devices, however when I downloaded my Atheros driver from Acer's website the driver said that my hardware could not be found. Any help?
     
    fred2028, Sep 25, 2008
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  2. Quilty997

    Quilty997 Notebook Consultant

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    I had a similar problem on a 5315 when in a moment of weakness I allowed the latest (Broadcom I think) driver to be downloaded and installed automatically by Vista.

    The ethernet device disappeared and I solved the problem by using the rollback driver command.

    Good luck...
     
    Quilty997, Sep 25, 2008
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  3. Andy

    Andy Notebook Prophet

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    What are the locations of the three unknown devices ?

    Try to install manually using the inf in device mngr.
     
    Andy, Sep 25, 2008
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  4. fred2028

    fred2028 Sexy member

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    I cannot rollback since I did a fresh install of Vista.
     
    fred2028, Sep 25, 2008
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  5. fred2028

    fred2028 Sexy member

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    The unknown devices are under Other Devices. I've clicked all of them and then clicked Reinstall Driver, no success. I've also tried Windows Update.
     
    fred2028, Sep 25, 2008
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  6. Andy

    Andy Notebook Prophet

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    How many unknown devices have the location: PCI Bus (Number) ?
    Check in the driver properties.
     
    Andy, Sep 25, 2008
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  7. Quilty997

    Quilty997 Notebook Consultant

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    On my 6920G the LAN card is in the 'Atheros AR8121/AR8113/AR8114' family according to PC Wizard.

    This may help you to track down the right driver.

    I also noticed it is a PCIE card running at 1Gig.
     
    Quilty997, Sep 25, 2008
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