I thought I'd got away with it as there was no overnight resync notification... then DLM decided to intervene at 13:30.
Overnight is no longer a foregone conclusion. As more people have got FTTC the times have extended later on in the day. Mine is usually about 11am but I have had a couple after lunch and Ive seen someone else report as late as 3:30 in the afternoon. There is no strict time frame, it may just be down to how many people have DLM changes on that particular day.
I'm not sure why it did as the ES/SES didn't increase significantly further yesterday.
When I looked last night your traffic lights were showing Red for Standard Profile and Amber for Speed Profile.
I was hoping that you my be on Speed, but I mentioned both profiles because Ive seen people on BT mention both.
I'm afraid that once you trigger the threshold DLM will take action regardless if the line stabilises later in the day.
As the regs on here will no doubt know... its one of my problems with DLM. I will go through a patch of Err Secs at about 11am sufficient to trigger DLM, I can then clear it, but DLM has already spotted it and will penalise me the next day despite the fact the line threw hardly any more errors for the rest of the day.
Not sure what's going on with my line at the moment. A couple of months ago the upstream ES went crazy for no apparent reason, and then settled down. The only change to the property has been having smart gas and electricity meters installed.
From looking at your SNRM, it would appear something regularly causes a small amount of REIN between 9-10pm each evening. Its only small causing a loss of about 0.5dB, but it is visible. For the past couple of days though that 0.5dB loss has increased to 3.5dB and since then its also happening at other times of the day.
Unfortunately
REIN is extremely difficult to track down
My downstream, as measured by speedtest.net is 32.5mbps. Am I at a point where I can raise it with BT? My non-impacted speed estimate is between 45.1 and 34.1. What's the downstream handback threshold? I've never seen that listed on the BT Broadband Availability checker before.
To quote something Ive typed elsewhere
The Downstream Handback Threshold is intended to reflect the slowest 10th percentile for a line. This is a figure at which the service is considered totally unacceptable and allows an order to be reversed without charge.Unfortunately some ISPs - such as Plusnet - appear to be using that figure to be able to raise an intermittent fault and are using it to reflect the MGAL and thus the level at which you can raise a fault. Ive had this discussion elsewhere, but they wont be moved. Full paragraph (relating to an 80/20 line) was actually
Quoting the MGALS rate is ISP related ie the slowest 10% of ISP customers with the same headline speed is irrelvant. Headline speed is 80/20. If you fall below the MGAL level then you are allowed to exit without penalty or charge. MGALS may vary from ISP to ISP and is NOT intended to be a threshold level at which you will or wont raise a fault to BT - See OFCOM 2015 Voluntary Code of Practice Broadband Speeds.
The Downstream Handback Threshold is intended to reflect the slowest 10th percentile for a line. This is a figure at which the service is considered totally unacceptable and allows an order to be reversed without charge. Again it is not intended to be a fault threshold level and other factors such as line history should be looked at. Handback rules relate to a line which can be ceased without charge or reverted back to adsl if the line has been investigated by Openreach for under performance.
In cases such as these connection fees, rental charges, cease & early termination fees should be refunded to the EU. See WBC FTTC Handbook. ---
The problem is because of crosstalk, the quoted figures do decrease over time, so any figure given in 2012 is no longer going to be applicable, but as a guide you can use the Downstream Line Rate of 34.1 Mbps
What I'm not liking about your line is your sync is currently 34,998 which looks like it may be capped. The line has been INP 3 for a while, so if it has capped as well as increasing INP to 3.5 that seems a bit harsh for one step. No-one yet has been able to fathom out what is happening with DLM capping.
You could try raising a fault with BT, you obviously do have something REIN like going on with that line. The difficulty could be that Openreach turn up and its at a time when the line is OK. I would definitely keep logging your stats - atm the SNRM is about the only proof that there is something wrong.
I would also do a Quiet Line Test just to make sure you cant hear any noise on the phone line.