I have my wireless network composed by a Linksys WRT54G v7 router and a WPC54G cardbus wireless network adapter. The signal received by the wireless adapter is not so good (the wireless network monitor says it sees a signal of 40-50% with a quality of 35-40%) even if the router and adapter are in the same room with a clean line of sight. As soon as I try to move in another room with at least a wall between the two devices, the signal decrease significantly with a total loss of contact with the router. I thougth to find a control the emitting power of the router to improve the signal but I didn't. How can I avoid the loss of the signal? Can I pump the power up?