I'm guessing you're trying to setup a WLAN connection to enable net access for firmware upgrades and use DLNA network services
I've got the Panasonic TH-P42V20A model and will try to connect ASUS usb N13 dongle to verify
update: it doesn't work. Under the Network option selected wireless. You may be better off with a wired connection as it is recommended for firmware upgrades. Any idea how much the panasonic dongle costs ??