Comment 16 for bug 280417

I fixed this by doing the following. This happened because during the netinstall, my wireless network was used. Therefore network manager was not managing the connection. I edited /etc/network/interfaces to remove auto eth0. I then killed network manager and restarted it.

sudo nano /etc/network/interfaces
(leave only loopback)

sudo /etc/init.d/networking stop
ps aux | grep Net

root 6220 0.0 0.1 6400 2252 ? Ss 12:13 0:00 /usr/sbin/NetworkManager
root 7078 0.0 0.1 7696 3508 ? S 12:17 0:00 /usr/sbin/nm-system-settings --config /etc/NetworkManager/nm-system-settings.conf

sudo kill -9 6220 7078
sudo /etc/init.d/networking start