Sudden loss of wired internet connection in archbang

See the Arch Wiki on this: http://wiki.archlinux.org/index.php/Network

For DHCP IP

For this option, you need the dhcpcd package (already available on most installations). To make use of it, edit /etc/rc.conf like this:

eth0="dhcp"
INTERFACES=(eth0)
ROUTES=(!gateway)

Strange enough etho was edited out with a ! like INTERFACES=(!eth0 !wlan0)
Don't know how that happened