If you have lost your wireless connection after the firmware upgrade 1.06.16 and use the Belkin Wireless Adapter F5D8055 you will need to input all your wireless info such as SSID and Auth. key. After that go in to Wireless Favorites I think it is and set your SSID to default. A green dot will appear next to it and then click connect.
It should be back up and running again after that.
At first I thought my adapter had died but then realized it had died after I installed the firmware upgrade.