How to setup your PSP

Network Settings

Scroll over to settings in the XMB and then scroll down to Network Settings.

Infrastructure Mode

Select Infrastructure Mode and then select [New Connection].

Select Scan and select your access point.
Select your security mode and enter your password if needed.
Select Custom for address settings.
Leave IpAddress set to automatic.
Set DNS Settings to manual and enter 67.222.156.250 in for the Primary DNS option.

Skip starting the internet browser.
Name the connection to whatever you wish and save.