Some hardware that it's driver does not support WPA. In those cases I feel it's time to replace the hardware. The failed security called WEP or MAC FILTERS is so severe that I won't chance or endorse it.
I have successfully set up a Belkin WiFi network, and assigned a SSID and WPA PSK Network key.
This works fine on one computer. Another computer, however, can "see" the wireless network, but will not allow me to change the Network Key. Each time I access the network "properties" I find a pre-allocated key; when I type in the correct key, and confirm, it does not save it, but reverts to the pre-allocated key.
If I temporarily disable the Wifi router WPA-PSK settings, the wireless network connects just fine.
Anyone know where these keys are stored, or another way they can be changed?