I have HSI through Comcast with IP phone also. I have the comcast issued Arris modem with telephony built in and built-in wireless access point. With the "Blast" package advertised at 20 Mb/s down with my wired connection I can achieve 38 Mb/s down but with the same computer and my laptop wireless I can only achieve 16 down speed even with wireless "N" connection. Anyone have any ideas on why? I have pondered this for awhile and yes, what people say about the fact that tweaking wireless settings on a win7 pc has no effect seems to be true. Looks like wireless N is a smoke and mirrors protocol.