said by Vertigo101:
Transceiver Revision A2pB020b3.d20h
Vendor ID Code 4D54
Line Mode ADSL_2plus
Data Path FAST
Transceiver Information Down Stream Path Up Stream Path
DSL Speed (Kbits/Sec) 887 912
Margin (dB) 4.8 12.4
Line Attenuation (dB) 49.0 25.8
Transmit Power (dBm) 14.0 12.6
Them be some bad stats. Generally when you see Margins under 10 your connection will start getting flaky. Seeing as your sync speeds are low and your margins are so low I'm thinking high frequency interference too.
You could try to connect the modem directly to the NID to see if the source is in the house or on the pole.
Also try to get your Datapath changed to Interleaved, Fastpath is quicker latency wise but your lose some error correction which I think you could certainly use atm.