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Network cable stopped being recognized

I've used this computer with a cat5 connection to the router for years.  The other day it just stopped recognizing the connection and says "a network cable is unplugged"  Other computers get internet just fine from the same cable. i have the same problem i tried re-instaling drivers, everything, the connection light doesn't even come on, the only thing i can think of is i just install ATI Catalyst Control Center, maybe somehow the drivers changed something i don't know. Device manager says the card is working fine. I really need help

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  • Palinkas Feb 26, 2009

    Ya i would do that but i've used up all available PCI slots, and it seemed like as soon as i got my graphics card working properly i lost internet. i downloaded catalyst control center, installed it restarted then bam, network cable unplugged, light don't even come on. I thought it could be a IRQ conflict, but it doesn't seem to be i have a couple doubles but not on the ethernet card, and no conflicts are registered

  • Palinkas Feb 27, 2009

    the motherboard is a Asus P4S800-MX and the graphics card uses a AGP slot and is a ASUS AH3450 which uses a ATI RADEON HD3450 GPU Also if its any help the onboard Network card is a SIS 900-Based PCI Fast Ethernet Adapter

    Thanks For your time i really appreciate it, this is driving me nuts!

  • Palinkas Feb 27, 2009

    yes it is a new graphics card, i installed CCC when i installed the card it came with the driver install file from asus. this is a computer i just use on my flat screen to play movies and such added a bluray drive to the computer and a 5.1 sound card i needed to add a card to have SATA to connect the bluray drive, I actually have one more pci slot but can't fit anything in it because of where i connect the power supply to the video card hangs to far low and blocks the space. this is really frusterating me i might just get a USB wireless stick but hard wire is much faster and i'd really like to use it. Do you think there is any hope


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Ati catalyst is for a graphics card.
it would not have issues.
the card may show as fine, or the drivers may. try the card in another pc. if it is built in try a new card. ethernet cards are just a few pounds.

Posted on Feb 25, 2009

  • 1 more comment 
  • sean sutton
    sean sutton Feb 26, 2009

    what motherboard are you using?
    also what graphics card are you using?
    i'll ask a few pals and see what they think.
    i'm sure we can get to the bottom of this.

  • sean sutton
    sean sutton Feb 27, 2009

    i have that same motherboard sitting on my workshop floor for kicking around when i am pissed off.
    it failed on me a month or so ago and getting anything from asus is a pain. thier tech support is rubbish.
    i'm not suggesting you do this with your motherboard, it wont

    is it a new graphics card?
    did you install ati when you installed the card?
    what power supply are you using?

  • sean sutton
    sean sutton Feb 27, 2009

    i have a wireless dongle on my sons pc and it works at 52mbs so just over half the speed of a cable which runs at 100.
    i personally use a 108mbs wireless from d-link which needs the 108mbs hub too. but that uses a pci slot. i think the best you could get is 54 from a usb.
    you should not have conflicts between your card and motherboard really?
    i also dont see why catalyst is being a *****?
    you could try rolling back the drivers for your ethernet connection through device manager incase ati driver altered it in some way. also i have found before that windows update can mess up device drivers by telling you that you need a new one when you actually dont.
    if you need help with doing this let me know and i will help you with that.


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