Maybe the wiring is too old or no longer meets code requirements? I know some houses still have paper insulated copper phone lines, and they cannot get DSL above a certain speed due to the heat generated by loading from usage... A few of the people i know who own these 1700's and 1800's era houses got FIOS to totally bypass the existing wiring with the cat5 cable.
- A
You are joking? Please say you are joking. DSL has no kick to it. Reason DSL would not work would have nothing to do with any imaginary heat.