Ubuntu :: Lost Wired Connection - Can't Restore

Sep 25, 2010

We had a power-out, which left my Ubuntu box off.

The modem & router is a friend's place, and it was rebooted. Both his boxes (Windows XP and 7) work fine.

but I can't get my box to hook back up. I've tried rebooting, unplugging cable to router from both ends (my box and router), rebooting his modem (Rogers' service) by turning off and on power supply for 3 minutes (as recommended by Rogers).

Once I got the Network-auto to show in the dropdown menu (I have a radio symbol on panel across top), but not again. I tried adding and editing a network connection (both wired and auto) but neither works, and if I boot unconnected they disappear.

The only thing I can get to show is a black box to the right on the desktop that has a red x and says Network Disconnected.

Me and friend are both frustrated as I don't want to interrupt his working use of internet to fix mine.

I have never understood how to connect to internet really, but it seemed to have solved itself in the past.

There is no password on the router, and we are not using wireless (which we never got to work).

The Rogers Modem is a "Motorola Surfboard" (Black).

The router is an Airlink 101 super-g wireless router.

My machine is a p4 motherboard with builtin ethernet socket on back.

My Ubuntu is I think Karmic 9.1

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Code:
#lspci|grep Ethernet
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
Likely culprit (according to dmesg)

[Code].....

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lspci:

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Code:

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[code]....

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