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My system:

  • Windows XP, SP3
  • HP 6730b laptop

Here are the symptoms:

  • Neither the orange nor the green LED flash when I insert a network cable. The network cable has been verified as functional with another computer.
  • In Network Connections, the status is "Network cable unplugged" even when the cable is plugged in.
  • When I remove the cable, it claims that it is safe to remove the "Broadcom NetLink (TM) Gigabit Ethernet". (Which is on the motherboard.)
  • The WiFi is still working (thank goodness!)

I suspect this might have been caused by new drivers and support that was automatically installed when someone plugged in a cordless mouse USB adapter and then removed it without requesting Windows XP to deactivate it.

Any help is appreciated!

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up vote 1 down vote accepted

I would suggest disabling/uninstalling it in Device Manager, then grab (& install) the updated Chipset and USB drivers from the HP website followed by a reboot.

Next troubleshooting would be disabling it in the BIOS or even 'rolling back' the driver to the original HP ones (or even reinstalling them from your HP support CD's)

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That would probably be a good approach, but I think the actual hardware has failed. Engineer due today some time so I'll let you know. – Bernhard Hofmann Nov 9 '11 at 14:43
    
Goodluck! Let us know the outcome! :) – HaydnWVN Nov 9 '11 at 14:47
1  
The engineer had my laptop in a thousand pieces to replace the motherboard. Seems to be working fine now. I'll mark this as the answer to close this question. – Bernhard Hofmann Nov 10 '11 at 6:33
    
Thanks! Glad to hear it was resolved, definately a hardware failure - hope it was under warranty! :) – HaydnWVN Nov 10 '11 at 11:51

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