Leaving my routers off for 40 minutes had no effect whatever; my upload still sits at around 1Mbps.
As an aside, what speed testing sites give consistent results? I have found that my download speed is said to vary from 8Mbps to 35Mbps (once, a fluke?), even doing repeated tests with the same site, and similarly with other sites; upload speeds are said to vary betwee 0.5Mbps and 1.5Mbps. Those with a meter show the speed swinging up and down cyclically, and speedtest.net shows a sawtooth graph with peaks around 35Mbps and troughs around 10Mbps, but with varying width. It looks to me like a flow-control sort of problem - but does this come from the speed testers, the FTTC circuit, my router (Draytek 2820Vn; turning off the firewall had no effect), or what (I can say it's not Windows, because I see the same using the speedtest.net app on my iPhone)?
Oh, and is there any way to find out the synchronisation speed on an FTTC connection? The engineer who installed it muttered something about 39Mbps, but I wasn't clear in reptrospect if that was actual or theoretical.
Paul
Edited by deleted (Wed 25-Apr-12 09:47:01)