What could have changed so that addresses that it once felt could get FTTC can no longer?
You answer that question yourself.
You mention the facts about what is connected where, and then state
the checkers are only as good as the data fed into them.
This is the answer ... the data being fed into the checker must have changed, and must now fail to match the reality of "the facts" you mentioned.
The database within Openreach is probably known as ROSE, and represents their understanding of the physical world. When I moved home 18 months ago, a surveyor checked for an existing line ... but put the wrong cab number into the database.
Simple mistake, and easy to understand - the property is right next to that cab, and the rest of the street use it. Unfortunately, the property was actually wired into the cab in the next street. Just a 21 instead of a 20.
Unfortunately, the order for FTTC took nearly 4 months to get sorted, just to get that cabinet number changed. Without it, the FTTC back-office system kept allocating a port in the wrong FTTC cabinet.
Getting the order through required numerous visits from Openreach and Kelly's engineers; mostly fruitless. It took constant effort from the ISP to escalate through BTW into Openreach - and eventually got some traction when an engineer was allocated to do a "pair prove", which was then fed back into the ROSE database.
The important thing in your case is that you mention this ...
So Cab 2 is closer to a mile away at the far end of the village. This was the our local cabinet until autumn last year. I assume most of the estate still remain connected there - the engineer said there were only 7 connections to the new cab 12.
I have noticed no recent connection speed change, so assume I am still connected to Cab 2.
It sounds like Openreach have gone through a process of "copper re-arrangement", which is relatively rare, and seems to be fraught with difficulty as far as getting the database updates correct.
However, if Openreach have really done a re-arrangement, you have to ask both *why* and *who for*.
On "why": Obviously to shorten copper lines, to make broadband speeds better - usually where lines are too long to get service elsewhere, or on EO lines that have no cabinet option.
On "who for": The answer is NOT "just for those ordering FTTC". Openreach do not have a system that allows you (on cab 2) to order FTTC, and for your line to be subsequently moved to cab 12.
Instead, Openreach run a process to first cut your line over physically, then update their internal databases to match, then to make estimates of your FTTC capability, then to allow you to order.
It sounds like you've hit the problem that either a) Your line hasn't physically been moved to cab 12; or b) the database updates haven't gone through, and need to be chased.
Edit: Typical! After writing all that ... I used the information from PaulKirby's last post in the DSL checker again, and can see that the checker is now reporting a connection to cab 12, with decent FTTC estimates.
Properties 27-31 remain on cab 2, though. Physical reality, or is the database still wrong for them?
Edited by deleted (Sat 16-Jan-16 12:30:28)