My son has a an Xbox 360 in his room and I hooked up a 50 ft cable wire to his xbox to the computer/internet in the living room. It was working fine until I tried to fasten the wires to the wall and all of sudden he lost connection to the internet. I bought another new cable wire and hooked it up and its still not working so it wasn't the cable wire. Why can't he get a connection anymore? Please help! Thank you! Cindy