I recently bought an Airport Extreme Base Station Refurb FC340LL/A. We have the following devices at home that connect to the Airport Extreme: 1) MacBook Air 2nd Gen Oct 2010 2) Dell M4500 with Intel® Centrino® Advanced-N 6200 dual band (2.4 GHz and 5 GHz), 2x2 adapter 3) Apple TV 2nd Gen Oct 2010 4) iPhone 4 cell phone 5) Samsung Captivate cell phone I assume that the Airport Extreme can work simultaneously in both 2.4 GHz and 5 GHz bands. In the Airport Utility I have the Radio Mode set to "Automatic". Now is this enough to ensure that the devices that are compatible with the 5GHz (the MBA, Dell and ATV2) connect to the faster 'n' network and the two cell phones connect to the 2.4 GHz 'g' network automatically? In other words do the devices connect to the fastest available network that they can run on by default? Or do I need to make any changes to my radio settings in Airport Extreme to make this happen? Also is there a way to check using Airport Utility or some other application to see which devices are connected to the 5 GHz and which ones are running on the 2.4 GHz at any given time? It will be nice to see that.