Hi, I was recently given a Dell XPS 15 L521X as a holiday gift. Now that I have Ubuntu up and running (a project unto itself), I need help with the wifi. It is not good in either Windows 7 or in Ubuntu. My wireless card is an Intel Centrino Advanced-N 6235. The problem is that in order to get a connection, I have to be in the living room (the room where we keep the router). It doesn't work in any other room in the house. If I do manage to get connected in the other rooms, it just cuts out. I read that this model laptop often has wifi issues, but I haven't read about any fixes. Any advice would be greatly appreciated.