Moving from BT will not improve the situation unless you go to a wireless/satellite or Virgin media product.
2.8km - is that straight line or following the cable route? I would certainly be expecting more than 2.4Mbps if that is cable length - over 5Mbps for ADSLmax or over 6Mbos for ADSL2+
Improving things at home.
Ensure the modem or hub is situated at the master and not on an extension. Minimise any other electrical equipment close by. Ensure any extension phones are taken from the filtered side of the master and that the cable runs to those are "clean" - avoiding power cables and other devices.
Get an unused (if possible) 2-wire 2700HGV which BT supplied as their business hub (not the 2701). They are extremely good on long lines and for a stable line will drop the noise margin down to 3dB. You may then be able to squeeze out a few more hundreds of kilobits.
This is good advice
A Billion 7800 adsl router will give stable adsl without dropouts unless there are line problems. Not cheap but will give best performance on a long line. Using one of these I got my 5km line up to 5Mbps after BT had cleared some faults on the overhead wires. I also had a faceplate with separate sockets for broadband and voice to eliminate any interference within the home
The 2700HGV business hub can be purchased new for about £20 from fleabay and may be the way to go
The distance from the cabinet suggests as Andrew has said that the fibre difference may not allow the improvement you would expect
I don't know about a programme for router stats for Mac I'm afraid
Try plugging your router into the test socket behind the master socket faceplate and see if there is a difference in speed
https://support.zen.co.uk/kb/Knowledgebase/Testing-c...
Does your master socket have twin sockets, one for voice, one for broadband?
Do you have microfilters on your phones, sky box, etc. If so, how old are they?
Edited by deleted (Tue 25-Aug-15 14:04:05)