I personally think Speedtest.net is mince, never ever gives my correct download speed which is 20Mb.
http://gamefiles.virginmedia.com/blu...demos/?C=S;O=D
Go there, select a file, select to save it and take note of the transfer rate. If it's not 1.2MB/s, leave it running and select a 2nd file from the page, sit them side by side and add the transfer rates together.
This will give a clearer indication.