I just upgraded my network to an Airport Extreme + Airport Express (ProxySTA mode). I was originally planning to run a 2.4Ghz B/G wifi net using my old Linksys WAP54G wireless access point, and a new 5Gz N only network using the AEBS and Express. I also own an Apple TV. The idea was to segment the wireless so that the older systems (laptops/PCs via USB wireless) would be on the B/G and the Mac stuff would be on the N. Unfortunately, the ATV does not see the 5Ghz N network. If I switch the Airport stuff to 2.4Ghz N only, the ATV sees the network just fine. I currently have the AEBS in the basement connected to my Wireless ISP drop. The ATV is upstairs in a family room and is sitting on a stack of Direct TV boxes. So the question is ... is there a anything I can do to increase the performance of the 5Ghz radio? I already have the transmit power at 100%.