Lumpy QLN graph = crosstalk ?
FIXED
Nope all speed tests roughly the same, anyway I think it's stuck because I cannot reset my PPP without busting the DSL again, just asked Pnet if they can independently reset PPP but they say they cannot either. I am getting away with it atm by telling the wife it's the sites are slow! hopefully I can get the REIN investigated/fixed before she gets to mad 
Nope it's not a fixed frequency at all, it sweeps and changes in amplitude much like a very very large motor drive might or a b****y wind turbine!! It's now knocked out all my tones above 167.
Strikes me you need to get busy with the radio set, also keep your eyes peeled and have a brew ready 
Yes I am very sorry for any confusion caused I can confirm the modem is set to ADSL2 only! And as you rightly point out this limits the frequencies to ~1100Khz and frankly on my length of line there is nothing worth having above that anyway. Typical bin knockout is everything above 170 or sometimes 150. The net effect on sync speed is usually a drop from ~4300Kbps to ~2600Kbps (this dramatic drop is caused by the resynch occurring during the peak period of the interference event).
The connections in the gable junction box are just an inline connection between two pieces of old figure 8 drop cable, there is no bridge tap there. These joints were replaced during the recent BT visit though sadly the drop cable remains figure 8.
The ring wires used to be irrelevant because the filter was directly into the master socket but is no longer, thankyou for reminding me
A small update, I removed the close coupling between the drop cable and power cables and since then no events on my DSL. I am having to come clean as startlingly Pnet want to send another BT engineer to investigate REIN. I very much hope he might replace the cr*p drop cable altogether or at least decide it needs re-routing. In any case my opinion of Pnet is rising, they escalated my ticket internally did a decent investigation and decided it needs more work, so here is hoping, it's also possible they read this forum or someone had a quiet word many thanks
Ohh and nobody at Pnet this time told me I was getting more than 1Mbps so should be happy, perhaps the penny is dropping that this really p*sses of customers.
A final note and closure BT investigated and agreed there was severe REIN on the power cables and "officialised" my re-routing to avoid them. This has had the effect of reducing the REIN event amplitude to 3db and that is no longer sufficient to knock the modem/dslam out of sync. The line is now stable as Pnet have also locked the DLM to 6db and set it to ignore errors. A very peculiar problem caused by REIN that both OFCOM and the BBC have refused to investigate and will probably remain. Many thanks to everybody here and the support staff at Plusnet for getting this situation under control and getting my service stable
Well I think I can explain and defend the 1st BTeng, he was investigating a PHONE fault and did as much as he could within that remit and TBH the drop wire could not be implicated though he did re-crimp the gable connection for insurance. It was only after that failed that Plusnet finally did what they should have done in the first place and raised a BB fault with BT that resulted in the drop wire replacement.
The drop wire is not a panacea, firstly it only has a telephone standard twist rate of once every few inches so nothing like the standard of CAT5, yes it's better than fig8 but not that wonderful. The major effect was the re-routing, I did try for the opposite side of the house to be completely away from the power cables but that was asking to much!
As for continuing to pursue the REIN I would prefer to return to my life before all this began as frankly it's a large amount of effort for ever diminishing returns and as it's a village wide problem, let some others have a go
P.S. just got a hit but its only 2.5db not enough to knock me out, I can cope with that
Obviously it's entirely your choice as to how much, if any, time you choose to spend on pursuing the REIN issue - if and by how much it impacts on the performance of your connection. I did not recall you mentioning it's effects were more widespread - "village-wide". I will simply wish you well there and hope the effects are minimal and that whatever the source of it is - it breaks itself completely and so disappears as a problem altogether.
However, when it comes to the drop-wire, your comments could leave the impression that the old figure 8 cable is quite acceptable which it most certainly is not. There's no defence for the 1st engineer not replacing it with the correct standard CW1411 cable - the PHONE line was picking up audible Hum, clearly exacerbated by proximity to power cables, and movement away from the power cables would in any event involve replacement! As far as the BB goes, it was only because of the major impact of proven REIN - from what you have said, primarily being distributed and radiated by the power cables, that resulted in its replacement further from the power cables. Unfortunately I've seen too many cases of BB faults with dropping connections where such old cable is involved and it was not replaced, so your implied assumption that a BB fault will automatically cause replacement is not valid. ANY (and all) opportunities to get old cable replaced must/should be used.
Whilst CAT5 cable is a higher standard, BT don't use it. Normal CW1411 (external) and CW1308 (internal) has an acceptable twist rate even for FTTC installations, so although it might not be a panacea in the worst of situations, it is for the great majority. Your situation is not the worst I've encountered
