Comment 95 for bug 259214

I also spent a lot of time to figure out whats going with it...!
No wonder how many times I delete "Auto eth0" or disable its automatic connectivity, it gets recreated at the startup and changes to the static ip address are lost. In /etc/network/interfaces manually settings are also scrambled by Network Manager. This only happens to Ethernet however Wifi works great.
Sirius56, I'm going to try your suggestion out and if it works, I'll sure owe you a beer :D
(Waking up from last 30 hours, lol!)