We have been trying to get a VDSL engineer appointment since Sunday 29th September and we are now threatened with a further phone call at 14:00 this afternoon.
We've also discovered that India is looking at the downstream (fastest) rate and arguing that nothing is wrong !
Perhaps I'm fortunate in that I'm already bald !
EDIT For Newcomers, I forgot to mention that one of BT Openreach's more serious malpractices is to lock their modem down so the end user is completely unable even to observe the horrible effects of their Dynamic Line Management logic; in this case the result is quite unacceptable - considering the end user is paying a premium for such a substandard service masquerading as the fastest possible "Infinity" product. Add to that BT's "No Universal Service Obligation" so that Ofcom lets BT get away with quite outrageous breaches of Consumer Protection / Trading Standards violations without even a whimper. (@ Maria Miller & Ed Vaizey - don't forget this is part of the "Best Broadband in Europe".)
For those interested in the technical detail very generously provided by Bald_Eagle1:-
It's not looking too great as DS Interleaving depth has shot up to currently 2325 (from this morning's resync), having peaked at 2570 (from the resync at 06:55, 26th Sept.)
It was only 743 until the resync of 26th Sept.
13/09/2013 15:14 - RESYNC detected (DS 47016 Kbps, US 11541 Kbps) Retrain Reason: 0
15/09/2013 14:55 - RESYNC detected (DS 47016 Kbps, US 11541 Kbps) Retrain Reason: 0
26/09/2013 06:55 - RESYNC detected (DS 43400 Kbps, US 11541 Kbps) Retrain Reason: 2
27/09/2013 02:15 - RESYNC detected (DS 43400 Kbps, US 11627 Kbps) Retrain Reason: 0
27/09/2013 07:29 - RESYNC detected (DS 39998 Kbps, US 11671 Kbps) Retrain Reason: 2
27/09/2013 12:42 - RESYNC detected (DS 39998 Kbps, US 11836 Kbps) Retrain Reason: 0
It also appears that the DS sync speed was banded at 39998 Kbps, when the connection resynced at 07:29 this morning.
Here's the data from 14:00 on 27 Sept.:-
xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 11948 Kbps, Downstream rate = 54772 Kbps
Path: 0, Upstream rate = 11836 Kbps, Downstream rate = 39998 Kbps
Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 11948 kbps 54772 kbps
Actual Aggregate Tx Power: 6.9 dBm 13.5 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 1.4 28.3 43.6 N/A 14.2 35.6 57.2
Signal Attenuation(dB): 1.4 28.1 43.5 N/A 14.2 35.6 57.2
SNR Margin(dB): 5.4 6.0 6.2 N/A 5.9 5.9 6.3
TX Power(dBm): -3.6 -15.0 6.5 N/A 11.1 7.4 5.9