Comment 5 for bug 562742

After behaving well for a couple of days or so, the mainline kernel has been throwing errors on this over the last several hours, particularly not activating the ethernet chip at all (lights on switch blink slowly). I had noticed that my working ethernet connection was labelled "eth1" instead of "eth0". I altered that in /etc/udev/rules.d/70-persistent-net.rules, removed dhcp3 leases and rebooted. That's when the problem started.

Whether that's what caused it, or whether that was a coincidence and a buggy update was the culprit, I have no idea. I'll do a reinstall later today and see what the result is.