What is the suggested router settings?

I have not touched nor customized anything within Vista itself since the last reload. Below is average results with Vista's auto tuning off and on. I should get at least 10-12Mbps wireless (I'm literally 1 ft away from router at my desk). It used to be that well, but I don't know what slowed it down.

Specs:
Sony Vaio Centrino / Core 2 Duo / 2GB Memory
Intel PRO/Wireless 3945ABG Network Connection
Intel PRO/100 VE Network Connection
Intel Driver: 11.1.0.86
Vista Ultimate (official release)