Well, as 2 different routers give similar results that tends to rule out the routers. It's more likely to be your line characteristics.

An IP reset was requested on Tuesday and a follow up phone call should have happened on Thursday. Needless to say neither have been forthcoming.


DSL Link Downstream Upstream
Connection Speed 44.00 Mbps 8.21 Mbps
Line Attenuation 22.10 dB 34.60 dB
Noise Margin 9.30 dB 6.00 dB


According to online BT telephone fault reporting, there is nothing wrong with my line. So no further on.