I've got an Apple airport at home that I connect to most often. 30% of the time the 720 will not connect to it. I use two laptops that connect to it 100% of the time every time. One is a Mac the other a Vista Dell PC.
Since it's a crap shoot to get wifi at most airports I visit I recently bought an ATT Elevate 4G hotspot to connect to the 720 and someday an iPad without needing too many data plans. My laptops connect to the Elevate ok, though the Vista PC gabe me fits in the beginning, it connects ok now. The Mac connects fine to it. The 720 has yet to connect to it and can't get any where. The Elevate is setup with WPA/WPA2 Personal, I've also tried it with WPA2 Personal AES. I've also tried it open and it won't connect even then.
I tried to connect to the Elevate again this evening and entered the SSID and Key but the 720 fails to even see it. It's within 3 feet, and I've moved it farther away.
Tye