I seem to be having a problem with SQM. If I enter any value other than zero for the download speed, my 180 Mbit/s cable connection gets cut to ~90 Mbit/s. Is this normal?
Currently I have my download set to 0 to disable ingress shaping, and my upload set to 100% of my average upload speed (5867 kbit/s). The reason I am not setting my upload to 85, 90, or 95% of true upload, is because it seems not to make a difference in terms of latency.
If SQM is disabled, I tend to get a 'B' for buffer-bloat at dslreports.com. If enabled, with my current settings, the letter grade improves to an 'A.'
Of course, I have tried multiple values for both download and upload, finding that 0 and 5867 kbit/s work the best. Perhaps one of my settings is off or could be tweaked further? I know when I played with these numbers in the past, (when I was using a different cable modem), I could reduce the latency, plus achieve higher than normal upload speeds.
As far as other settings go, I just followed the guide at...
What do you guys think?