There is a free test you can try at zdnet.co.uk try the speed test there then try positioning your dsl filters off of the floor or on a piece of paper before running the test again. Rule static out first then if you stll have the same problem try unplugging all of your phones and try the test again. Wherever you plug your dsl filter and modem into shouldn't really be on a telephone extension cable either as your telephone lines gain is significantly reduced when pasing through miles of extension cable. Hope this helps.
Tony Watson, February 2005