I have Adelphia Premium service (6 mbps down and 850 kbps up). When wired directly to modem I get about 5123 kbps down and 850 up. When I am wireless I get 1 mbps less at about 4 mbps. How much speed are you guys loosing via wireless? I have a v5 WRT54G with the latest firmware. No security enabled, tried all channels 1,6,11.