My gf lives in a shared house with the internet but know one can pick up the wireless signal.The router is 20meters away cause of where the phone connection is and it isnt possible to move it closer.Is there any way I can booster the wireless signal so that every one in the rooms up stairs can pick it up?? I tried using a 25M telephone cable to move the router closer but that didnt work.The longer the range the better! Can I plug some thing by usb in to my g/fs laptop to boost the signal range?