"Observed Date" in BT Broadband Availability Checker

[#1]

Does anyone know how often the "Observed Date" field in the BT Broadband Availability Checker website is updated, or should update? Or if anything triggers an update?

The picture of that screen is a useful diagnostic tool, so it's common to see them on the forum at various times from different users. I've always noted that for everyone who posts them, the "Observed Date" is recent - typically within a few days of the post.

However, when I check it for my line, I was used to seeing it very out of date. I occasionally take screenshots, so for example I can see that when I took a screenshot on the 13 Jan 2022 and then on the 27 Nov 2022, the report mentioned "Observed Date 2021-12-26" both times (so about 1 month, then 11 months old).

This was a question I have meant to ask for a while - but amazingly, I did one today and it actually has today's date for "Observed Date". That's a first for me!

I always use the DN check entering my landline number. My ADSL line is absolutely fine, I don't have any problems - I was just curious about this date field updating.

[#2]

Mine shows 15/12/22, the day after an Openreach visit to fix a broadband problem (dirty contact on faceplate)

My router is showing a DSL uptime of 51 days (19/12/22) so the observed date is not based on last router synch date.

[#3]

Good point, it doesn't seem to be related to rebooting my router (current DSL uptime is 2 days 8 hours, I rebooted it then). As for faults, I've not reported or had any since installation over 6 years ago. I'm curious as to why it never used to update for months at a time, and particularly as it is now showing today of all days. I'll have to see what it shows in the coming days. Thanks.

[#4]

FWIW, I noticed "observed date" further updated on Feb 16th, then Feb 26th and nothing since!
So 8 days later, then 10 days later, then nothing for at least a month so far.
Doesn't seem to be related to reboot or anything I can spot! Perhaps it will go back to only once a year or so now, who knows 🤔

[#5]

@seebee My last 'observed date'  is 26/02/23, which is totally random, but it has given me a giggle  -

This on a 40/10 connection which is actually set at 39.1/9.1.