For wpa you would need a server to connect through making it more secure. SSID is the network name for your network you dont need to turn it off. Are you using a wireless adaptor for the other machine, I have netgear wireless adaptor for my mums computer. I use wep feature you would need to set up the wep in the software. The passphrase is generated by the router minium 1 character this generates a key which is displayed. This key is then entered into the adaptors software where there is an option to enter the key 64bit or 128bit. There are other things but hope that makes sense so far. Sorry for my english isnt too good.