I'm a BT customer at Calvine exchange (ESCLV), located approx 9.5 km from the exchange with a line made up of copper, aluminium and what at times appears to be baked bean cans connected by string. As you might expect I don't get much speed: for the last 3 years my normal connection is a downstream DSL connection rate of 0.7 - 0.8 Mbps, IP profile of 0.5 Mbps and a download speed (on the Thinkbroadband tester) of around 0.43 Mbps. I've been in a slowdown period for the last 3 weeks where the connection rate is 0.35 Mbps, IP profile 0.25 Mbps and speed of about 0.2 Mbps. These are through a Homehub4 and measured with a wired connection.
I've had an Openreach engineer out twice in the first few days after opening the fault, once to do a line repair and once to investigate the slow speed (same person both times), neither visit had any effect other than to confirm that he was seeing the same connection rate as I was. I have spoken numerous times with BT second level support, so far nothing they have attempted has achieved anything. Today they have reset my profile to 0.5 Mbps. Is this just them tinkering to make it look as if they're doing something or can it actually achieve anything? If the DSL connection rate is still 0.35 Mbps then I don't see how setting the profile to a higher value can do anything (but there may well be something that I don't know that means this is a good thing to do).
I'm now seriously starting to consider satellite, but that's for another thread (coming soon).