Instructions
Internet Configuration
Open your "Start" menu and then select the "Control Panel."
Double-click on the "Network and Sharing" icon or simply "Network" based upon what operating system you use.
Right-click on your wireless internet card's icon and select "Properties" from the drop-down menu.
Select the "Advanced" tab and then place a check in the box next to "Allow other users to Connect through this computers internet connection" to enable Internet access for your PlayStation 3.