soo after well over a year of being synced at 8128 ive noticed after being away for a weeked, leaving my modem/router off.. I now only sync at 7616.. to go along with this most of my ping times have effectively doubled aswell 
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: OFF
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 8.8 24.0
Attn(dB): 29.5 17.0
Pwr(dBm): 19.7 11.8
Max(Kbps): 8992 1104
Rate (Kbps): 7616 448
that being all my line stats.
Taking the usual root thought it might just bounce back to where it was before and no joy.
As for my ISP its a company called Nitrotech so doubt anyone has heard of them
Anyhow any helps appreciated before I phone and complain to them !

Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: OFF
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 8.8 24.0
Attn(dB): 29.5 17.0
Pwr(dBm): 19.7 11.8
Max(Kbps): 8992 1104
Rate (Kbps): 7616 448
that being all my line stats.
Taking the usual root thought it might just bounce back to where it was before and no joy.
As for my ISP its a company called Nitrotech so doubt anyone has heard of them

Anyhow any helps appreciated before I phone and complain to them !