[server] 16.04.1 upgraded server does not start network

Hi, after upgrade from 14.04, my 16.04 virtual machine does not start it's network:

shows on eth0

However, only lo was brought up, ifconfig shows no trace of eth0.

fixes the situation. For a permanent workaround, I can put these two commands into rc.local

Any suggestion for what's going wrong here?

Thanks!