I had found a very good speed test site that will do 10, 30, 50 and 100 Meg a good accurate and reliable speed test.
Try this link and post back with your result:
http://speedtest.magnet.ie/
Last Result:
Download Speed: 96412 kbps (12051.5 KB/sec transfer rate)
Upload Speed: 9573 kbps (1196.6 KB/sec transfer rate)
Ping: 11ms