So, 1USA is consistently better than the national average. 1USA's equipment can support throughputs up to 925k per second when the rest of the world is ready for it. There are many variables involved. The quality of your inside wiring. Line quality from Bell Atlantic to our office.
Rain gets into the phone lines.
Net ISP - which doesn't fix your situation. We have linemen on the pole regularly. The workmen admit that the wires are old and in need of replacement, but the company would rather send out a lineman to go thru the motions than spend the money for new wire. I personally had them replace my 1928 service a while back with a 4 line cable and all new hardware to the pole, but the people next door can't get a good modem connection most of the time. In Leesport,PA sometimes you can't even get a voice line on rainy days.