Hi Joe,
Thanks for your answer. I am having the same problem on a Thinkpad X230. I tried folllowing your advice by going to the Intel connnection settings and selecting "2.4 Ghz Band" as in the following picture: http://i.imgur.com/ZQHXxPm.png
I then reset the adapter and removed the device and readded it. It still disconnects me from the Netgear PTV2000 whenver I try to connect to the network/won't connect to the device if I am already on the network. Is there somewhere else I should be configuring the band?