How to remove a damaged Wired Connection

[Ralf Mardorf]

On Sun, 28 Aug 2016 20:12:51 +0200, Chas IRONS wrote:
>Gedit shows /etc/network/interfaces content that I do
>not understand :
>auto lo
>iface lo inet loopback
>Could that cause eth0 to prevent eth1 from connecting?

The lo/loopback lines for Ubuntu are required default setting, even when
using Network Manager. This file should be ok as is, assuming you want
to set up anything else using Network Manager.