How to setup WIFI on your Raspberry Pi - Openelec XBMC
Setting up WIFI in OpenElec XBMC for the Raspberry Pi is very simple. At the menu, head to Programs, and then down to "OpenELEC"
All of the details in the "network" tab will need to be filled in. On a Windows PC - run "ipconfig /all" in cmd to get the network gateway and DNS settings.
The remaining settings - all filled in