I have dual boot with Ubuntu 15.04 and Windows 8.1. I mostly use Ubuntu and wasn't able to use lan, I though my port had some problem. Today I opened Windows for some work, and just connected Lan for experimenting and its working.
I tried sudo service network-manager restart several times in ubuntu. It does recognizes that something has been connected (the wifi bars keeps moving), but doesn't connect.
Does anyone know, how to make it work? Thanks in advance.