I am using Ubuntu 12.10 and I am stuck. My wireless connection works fine, but my wired does not. I would prefer to use my wired connection on this machine.
When I ran
lspci | grep Network the output was:
04:00.0 Network controller: Ralink corp. Device 539b
My machine is a dual boot. When I log into Windows my wired and wireless connections both work.
When I log into Ubuntu only my wireless works.