Posted 08 July 2010 - 10:10 AM
Sorry but your lesson learned isnt entirely correct.
The band it operates on, 2.4 or 5ghz, does not determine which wireless capability (b/g/n) that it uses. Besides the Selectable Dual-Band and Simultaneous Dual Band Routers, the rest of the Routers operate on only 2.4ghz, including all the Wireless N150, N300, and N+N300. The type of wireless encryption would be the factor that determines whether or not your USB wireless adapter can "see" the signal. For instance, try connecting an X-Box with the older wireless b/g adapter to a WPA2 encryption, and you will see that it does not work. You have to "dumb" down the encryption to at least WEP for it to work.
The Dual band just give you the option to either select one, or run both, depending on whats better for your situation, to increase speeds and throughput - used because the old 2.4ghz band is so clogged with traffic for most people in a populated area, by the wireless home phones and other peoples wireless internet signals. The "newer" 5ghz routers operate above that and have much less traffic, giving your a clearer, stronger signal.
Other then that, im glad your finally connecting to the internet, enjoy!