BT have sent an engineer out but the upshot was that the line is as good as it's going to get and theres nothing that can be done beyond an infrastructure improvement (scheduled for the next couple of years so not a lost cause!). The engineer mentioned that interleaving is off and that the connection has no CRC errors (i.e. is very stable albeit slow).
Because of this I'm now trying to eek every last byte out of the connection that I possibly can.
Link Rate - 672 Kbps (Down) / 416 Kbps (Up)
Line Attenuation - 63.5 dB (Down) / 31.5 dB (Up)
Noise Margin - 6.0 dB (Down) / 5.0 dB (Up)
I'm connected to this exchange - https://www.samknows.com/broadband/exchange/EASTM - which is an approximate 6.13KM (straight line) distance away.
New BT master socket
ADSL Nation XTE2005 filtered faceplate (I also have a new Openreach MK3 faceplate I could use instead)
0.5m Tandy "ADSL Nation Pro+" twisted pair RJ11 cable
New Netgear modem router (think something like the Nighthawk).
My current modem doesn't support SNR adjustment (i've tried using telnet but it kills the connection no matter what).
I've just bought a Billion 8800NL based on the fact that it looks to be the best (or at least joint, with the same modem chip as the 7800NXL) modem I can buy, and that it supports SNR adjustment.
Is there *anything* else I can do?
Edited by Jakg (Sat 11-Apr-15 09:49:55)