Instructions
Turn on your PS3 and wait for the Home Screen to load.
Push the right joystick to the left until you highlight "Network."
Move the right joystick down until you highlight "Internet Browser." Press the "X" button.
Highlight the current URL and enter "Pingtest.net." You can enter this by pressing the "Start" button and moving the right joystick over the onscreen keyboard. Select a letter with "X." Alternatively, type it in with a USB keyboard attachment.
Move the right joystick over the Pingtest webpage until the cursor is over "Begin Test." Press the "X" button to start the test. When the test finishes, the results will display on screen.