I am using a desktop PC that runs Vista. I have a Linksys WRT54G wireless router and a dual-band USB Linksys adapter AE2500. My downloads are 11Mb/s and uploadsare 6Mb/s. The PC is in another room away from the router. If I connect the PC directly to the cable box via an ethernet cable my downloads are 57 Mb/s and my uploads are 11Mb/s. If I connect the PC through the router still using the ethernet cable, my downloads are 58 Mb/s and uploads are 10 Mb/s. If I connect the PC to the router via an adapter my downloads are 18 Mb/s and my uploads are 6 Mb/s. (The PC is still directly next to the router in the same room.) If I move the PC back to the other room my downloads go back to 11 Mb/s and my uploads are 6 Mb/s. THis leads me to believe that the router is working fine but the adapter seems to be the problem. Is my assumption correct and what can I do to increase the speed. I am on channel 11.