My cabinet (FTTC) is just 26 seconds walk away from it with my stopwatch timer
So, I think engineer is mistaken telling me that I am within 200m away from cabinet, because if it was 200m away I wouldn't getting 80/20.
You may not be 200m from the cabinet, your *wires* might be 200m long to get between your master socket and the cabinet.
My parents are 450m from their cabinet, and have 80/20 without problem. They have a max rate of 95 Mbps download, and 22 Mbps upload. Yours is still better.
I'm also 450m from my cabinet, but I only get 49/8 on speed tests.
We all essentially pay the same. So you can see why there is nothing wrong with yours.
James BT Infinity 2 19/09/2012 - Sold 42/6 - Getting 49/8.5 - Sync 53 / 9.5 Mbps @ 470m approx
14 years of broadband (ntl: cable to BT FTTC) - Router: Asus RT-N66U - Modem: Huawei HG612 speedtest