I am using ubuntu 14.04. at first I use a dsl connection created from network indicator-> edit Connection. Everything works fine. I can even access other people's shared folder from "ShareScanner" software.
One day I see, that I can connect internet from terminal. I got excited and install, pppoeconf by typing "sudo pppoeconf".
after installing pppoeconf with my id and password, my network indicator starts to acting weird.
Now there is no alive Ethernet connection found in my network indicator. Though there is a Ethernet card in my motherboard with a live cat4(RJ45) cable providing internet by pppoeconf.
if I go to "edit connection" I see my dsl connection but there is no connection showed in network indicator.
So I can't connect to my dsl connection from my network indicator.
The worst part is, there is a ftp server in my university. But I can't access it. Even I can't access any other ip who share their folders in the network. here is a image that my ftp(10.220.20.25) and other PC in the lan network (example 10.220.63.22) got successfully pinged. See the image,
and also I can't find any PC in the ShareScanner. Sometimes I got 2-3 PC in my network but don't find the all PC's though ping shows they are online.
All of this was run very smoothly before installing pppoeconf. I don't know how to solve this problem. I use Ubuntu for my primary OS. But now I have to use it as a secondary and switch to windows which is pretty tiresome. Please help.