Comment Re:Live with it (Score 5, Informative) 345
I too used to work for Speakeasy, roughly 1.5 years ago before they were bought out.
If your connection drops down to 0.1 or 0.2 at night then I would call your ISP when you're having the issue and request that they run a loop length test (aka plugged/unplugged test. This is the test where they have you unplug your modem for a couple of minutes, then plug it back in but with the power unplugged on the modem). Have them compare the results to when you first signed up for service. Theoretically they should know what to do from here, based on the results of the test, but if they don't then I would ask them what the results were and whether it's reporting any issues like metallic noise on the line, tip to ring, tip to ground, etc. I'd also ask them if they've installed any bridgetaps on the line, and if so, if they can remove them as this can impact service.
If they don't find an issue on the line than I would ask them if their backhaul is currently over-saturated, and if it is, to be switched to another backhaul. They can often view this information by logging into Cacti or some other bandwidth monitoring program they use to see the current usage.
Anywho, I glanced at this article and this guy does a pretty good job at explaining how DSL works and what some of the common issues are: http://www.techpowerup.com/forums/showthread.php?t=113143
Hope this helps!