DSL Mode: G.dmt
You are on a 'up to 8Mb' service.
DSL Upstream Rate: 448 kbps
DSL Downstream Rate: 7616 kbps
You are connected to the DSLAM at the highest rate possible for your service.
DSL Noise Margin: 270 dB 94 dB
DSL Attenuation: 155 dB 321 dB
This looks like a decimal point is missing and should be:
DSL Noise Margin: 27.0 dB 9.4 dB
DSL Attenuation: 15.5 dB 32.1 dB
Simplistically, there is nothing wrong with the physical ADSL connection. If your throughput is low, it would perhaps suggest that contention is present somewhere (a traffic jam on a connection within the network), possibly at either the local exchange or at the ISP.
Perform a BT Speed test
(with a wired connection to your router - using wireless can be unreliable) and post the result (minus your telephone number) here.
Eats shoots and leaves.
Edited by panda (Sat 31-Dec-11 12:56:31)