Hi All, posting back with an update as promised (sorry it's a bit late)
On exactly day 14 from switch over, and literally within the actual hour that my switch over had occurred earlier my line had a resync with reason code 1 (DLM) This happened on the 30th and the the following was applied to the line:
G.INP became active on the DS (like my line originally had when I was BT) (DS and US on BT)
SNR 6db/15db (3db/9db on BT)
INP 49/0 (48/47 on BT)
Interleave 8/Off (16/8 on BT)
I also received an e-mail from Plusnet immediately indicating my new terrible line speed and a few items about expected speed etc. So it seems there is a connection between the back-end systems on PN and the cabinet DLM, too much coincidence here. Though I'm not saying that CSR's can do anything with DLM just so I'm clear, but the back-end certainly is aware no doubt.
So on the downside, I lost a further 3 Meg on Sync and likewise further degradation on actual speed, so an overall total loss of 15Mbs, leaving the line the worst it has ever been in my entire time of having fiber.
I have had another resync due to my little one turning off the power and this resulted in an increased sync at 77972 when I turned things back on, but this was not related to DLM in case you look at my line stats on MDWS (same username as here)
Since the last sync, I've been up 27 days and no sign of moving down to the 3db SNR, which is annoying as that should take me back to my solid 80/20 days. The only thing I've noticed on the line is a transient SNR shift which I'm guessing is crosstalk, not sure what REIN looks like on the graphs, it's strange as it appears to happen on very exact timings, e.g. 16:45 and then off at 07:45 but moves around in time shifts but again quite exacting on the time it goes on or off.
Question: Anyone have a clue if there is a timing or method by which our favorite DLM system will take me down to 3db SNR on PN?
I've been watching V_R's debacle with great interest hoping I can get back to my original position, but not filled with hope.
Feedback welcomed....