I recently installed my d-ling di-524 wireless router. We live in a split level home, with the main pc on the top floor. On each of the other two floors, my wife's notebook shows an "excellent" signal, but cannot connect to the internet. I tried contacting support, and they said to get a range booster. We bought one (bigger antenna), and nothing still. Do you know of any settings both on the main pc and the notebook that might be out of whack? We have gotten a signal from time to time in the past, and now nothing.