My VDSL modems were only able to sync at ADSL2+ speed, not VDSL2 (which is my service with Zen) once my line had been activated. An OpenReach engineer was sent out.
I just had the OpenReach engineer round. After checking my line and everything he said that the problem was that the fiber had been connected to the wrong cabinet? His English wasn't too good so I couldn't really get a clear explanation out of him, but he said I needed to call my ISP about it.
EDIT: Just to add a bit more info on this, he said that my line should be connected to cabinet box 29, but was connected to 42. I've had a walk around the neighbourhood and there are lots of little green cabinets with numbers like "XX29I-26" on them (letters changed) and a central darker green, more modern looking cabinet with "29" on it. It definitely seems to be the closest big green cabinet.
I just want to get a clear understanding of the topology of FTTC in the UK and what's actually gone wrong here. My master socket connects to my cabinet (it's over the street). Would the problem be that the cabinet itself has no fibre running to it (BT forgot to connect it?), or that there is fibre but that my ISP (Zen) hasn't been allocated any fibre lines in the cabinet? And whose fault would it be; BT, OpenReach, or maybe Zen for not requesting allocation in the correct cabinet?
And why is my modem even able to sync with ADSL2+? As I'm not connected to Zen's FTTC, with which modem is mine actually communicating? Does the modem's signal pass through to the exchange's DSLAM and communicate with one of the modems there, and would that modem be for a particular ISP or are they generic?
Also, out of interest, once I am (finally) on FTTC, will the signal from my cabinet communicate with ISP equipment in the exchange, or will it pass through the exchange and authenticate with my ISP's network at a more centralized location?
Zen unlimited fibre 2 | http://game-point.net/misc/speedtest-ookla-ZenFTTC-2...
(hopefully to come):
Master socket: NTE5A with MK3 VDSL filter faceplate
DSL model: BT Openreach Huawei EchoLife HG612 3B VDSL/FTTC (unlocked)
Edited by jez9999 (Tue 13-Jun-17 14:34:53)