So my house has two room, with a net, no network in my room, now I'd like to have to get into a network, home broadband is optical fiber - & gt; Light cat - & gt; The router - & gt; To each room, I tried each cable and connected to the router, but seems to be not connected to my room, weak current and have no crystal head cable box, and I don't know if the room is linked together, I want to ask how to find the room is connected to the Internet line with me?