I am having a few problems understanding the speeds required for the settings of QoS (Download) & ACG. After reading the Wiki I did the following;
QOS without ACG
I have set my Total (Download) Bandwidth to 2000 kbit/s because when I checked using .www.speedtest.net the reported around 2200 kbit/s so I stayed on the safe side.
QOS with ACG
I should set my Total (Download) Bandwidth to what the modem reported attainable line rate - 20888 kbps
Correct, a speedtest reports 2.2mbps thats 2200kbps download speed My modem reports a connection to ADSL of ;ADSL Speed: 20862 kbps / 1022 kbps
The modem is reporting what the line connection is capable of i assume, as TPG says I have a connection capable of 20mbps/1mbps. But i would never expect those speeds, I would expect more like what speed test reports.
I dont understand why you think this is unusual. But bear in mind that I am using off net, it piggybacks other lines and possibly reports that rate, but will never deliver it, However I have never come across an ISP that can deliver the speed that it boasts is possible. And I have never known anyone achieve it as the bandwidth that is boasted is normally shared across many users.