Before running the speed test, make sure that only the computer using the speed test is accessing the Internet from your home network. Other computers or game consoles hooked up to your Internet connection should be turned off during the test. Additional internet programs running, such as email software, instant messaging, WeatherBug, etc., should be disabled or closed while the computer is running the test. We encourage you to run the test at least 3 times and look at the averages more than the result of one test.

The Ookla Speed Test requires at least version 8 of Flash. Please update your client.
Speedtest version 2.2.0 -- 1/10/2012