How do I know when my on-board ethernet is dead? (Realtek 8112L LAN controller w/ AI NET2 )

Posted by Usagi on Super User See other posts from Super User or by Usagi
Published on 2011-02-11T21:35:31Z Indexed on 2011/02/11 23:28 UTC
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motherboard

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ethernet

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asus

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hardware-failure

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realtek

So I have an ASUS P7P55D-E Pro motherboard. It has an on-board Realtek 8112L LAN controller w/ AI NET2. I suspect that my LAN controller is dead but I don't really know for sure. This is what I know thus far:

Everything was working, I have a triple booted system and ethernet was functional under Linux, Win7, and OSX.
My ethernet is no longer functional under all three of the operating systems.
I was experiencing random momentary internet outages before everything finally went dark.
I don't know much about the AI NET BIOS tool but I believe it just checks for ethernet problems before you boot into an operating system. In any case, it doesn't find a connection upon boot.
I've checked the connection on a couple of other machines and everything worked fine.

I think I already know the answer to my question, but are there any other possible explanations, or is it dead?

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