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I have recently installed Ubuntu 12.10 onto my Dell Inspiron N5010 and Ive been all over many forums trying to figure out how I can get my ethernet cable to be recognized so I can set up a wired connection.

My Network Card is the Realtek RT8139 and from what Ive gathered the ethernet port driver for it is installed. Whenever I run ifconfig in the terminal it says that eth1 is up and running but no matter how I edit the connection I cannot get it to work. If anyone can help it would be greatly appreciated!

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Are you running on battery or AC? – Farid Nov 24 '12 at 13:06

Just curious if you are running on Battery power or AC Power?

I recently upgraded my Toughbook from 12.04 to 12.10 and was pulling my hair out as my Wireless was working but my Wired connection would not connect. Once I plugged in my AC Adapter it turned on and connected showing me it was a Power Management setting preventing it from working before.

Thought this might be helpful to you.

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