Well the home is fed with a pole for the last 30m, perhaps that has a bearing. I used to get up to 2mb a while back and never did a speed test since then as for my needs it was always sufficient. Next time i'm home i'll do a master socket speed test and see. The reason i assumed throttling was that no matter how many times i repeated the speedtest on different days and times of the day the readings for upload and download were always the same....
This is a big city suburb area, so no out in the sticks shenanegins with wiring.
The neighbour has Virgin cable and it's definitely va va voom
SHJ