Router syncs at 20268 kbps down and 969 kbps up.
SNR Margin (dB) is 5.9 down and up
Attenuation (dB) is 3.0 down and 2.5 up
Output Power (dBm) is 0.0 down and 9.3 up
Ethernet straight to the DSLAM.
Looks like a 6db profile, which is the fastest TT do, but I would have thought your sync would have been a bit more than that. your upload should deffo be hitting 1020 (1019 for fastpath) and the down should be able to squeeze out a bit more.
What's state is your internal wiring in, have you removed the ringwire?
If you have a Broadcom chip router, you could tweak the SNR yourself and hit the full 24Meg easily.