I am trying to help a mate set up a peer to peer wireless link between his Sony VAIO and a desktop. The desktop connects to the internet via a satellite connection, and that connection is shared via ICS. The wireless in the Sony is inbuilt and the card in the PC is a D Link DWL-G520. The network is working, but I have three options for "network authentication" and these are Open, Share and WPA-none. What are these options and what do I choose?
Both PCs running XP Home SP2