+5

I noticed that nm-applet claimed it was connected wirelessly through eth0. Curious, I stopped it and ran ifconfig. ifconfig called the lan eth0.

That is wrong. Possibly a deeper problem than network-manager?

With network-manager turned off, ifconfig said I was connected on eth0, with errors, to the lan. But I didn't test it because I am sharing service with a friend and my router has none. I sould have thought to ping it.

# ifup

returned ignoring non-existant interface eth0=eth0

# ifdown returned
interface not configured

On restarting network-manager, it took a few tries to reconnect, which is not normal. But it did connect, on a wireless interface named eth0 .