I recently switched form a dsl modem to wireless router configuration to a supposedly new ad wonderful modem and router build into one by Bell. This allowed me to eliminate the 2 separate units and only use one. Here is how my configuration has changed. I am in a 5 level home. On the top level, the PC was USB'd to the Bell modem which went to the Linksys wireless router. The two PC's on the bottom floor had Linksys wireless adapters. Home network and internet worked without a problem. Now Bell sends me the wireless modem/router and I change the setup. The top level PC is equipped with the Linksys wireless adapter. The wireless modem router is now put on the bottom floor etherlinked to the 2 PCs and one printer. The wireless top floor PC gets the internet fine, but after a few minutes, it says it cannot find the network and the activity light on the adapter is no longer lit up. I have to uninstall the adapter and reinstall it to get the internet to work again. This loss of internet is constant. My thought is that I am not getting a strong enough signal from the router on the bottom floor, to the top floor. I am considering a booster antenna but am not sure if it is the right solution or what to look for when making the purchase. Any ideas?