It is my understanding that there is a firmware issue with prism wireless devices. Until that is fixed there is no way for the prism drivers to initialize.

Try my previously posted method for manually initializing:

Line 1: modprobe prism2_usb prism2_doreset=1
Line 2: wlanctl-ng wlan0 lnxreq_ifstate ifstate=enable
wlanctl-ng wlan0 lnxreq_autojoin ssid=<whatever your ssid is> authtype=opensystem
Line 3: ifconfig wlan0 <your ip address>
Line 4: netcardconfig

Just insert your ssid and ip address.

I have this routine setup as an executable script and it works everytime without having to disconnect and reconnect the device. Rather important if you have a laptop with built in wifi prism device.

Give it a try and let us know your result.