Unable to connect with wired connection in 12.04

view story

http://askubuntu.com – I am having a problem connecting to wired connection from router. I used to have 11.10 where I tried to establish DSL connection. I tried it doing through the terminal using some pppoeconf commands. When I reboot my system, under the Ubuntu loading sign, I saw messages like configuring network; wait 60 seconds more for connection, etc. Then after 2-3 minutes, Ubuntu home screen appears. When I tried to connect with my wired connection, it always says disconnected even if there is a wired connection. Then I went to network and tried to connect from there, but I was unable to do so. The w (HowTos)