Are you really that close to the cab ? You should be getting better speeds than that.
Cue the usual questions, wired or wireless to speedtest ? Describe the set up of your connection ? Any useful stats in the router ?
Cat 6 wired to computer from Router, router into faceplate broadband socket, internal phone wiring in separate socket on faceplate
Hub 5a firmware version 24/5/16 . Not updated since fitting. Uptime 2hrs 6 mins
Data rate 8849/43655
Noise margin 5.8/6.1
Line attenuation 33.5/24.4
Signal attenuation 34.2/22.0
Modulation G.993.2 Annex B
Shortest sync 1 day, longest sync 7 days
Fastest down 40.16 TBB 40.50 HTTPx6
Slowest 38.65 39.15
Fastest up 9.32, slowest 8.10
Remeasured distance to cabinet, could be up to 550 metres, but as all cabling underground unable to ascertain exact route