helis:richms: Speed it set at sync time, so less noise from less people using the internet will give you higher speeds for the same noise margin.
This is what I assumed. But it seems its better to sync at a busy time so that the router picks a speed that suits the worse line condition. This way CRCPM's overall are lower. I generally save doing a reset if i need to until about 7pm.
I get higher speed and worse error count on the ADSL if I sync in the morning, Since I synced in the powercut I have synced at 19 meg, have a 5.5dB margin and it screams along compared to the usual 13 meg on a good day it used to get. The VDSL line crapped out with all the other users coming back online but I think I was getting around 40 with the sync during the powercut compared with 22 I have normally.