Sudden Drop In Speed

[#1]

This morning my line speed has taken a sudden drop for almost 2 weeks my line has been stable obviously with this sudden drop in speed i did a quiet line test and line was nice and clear ,so now im not sure what has caused this sudden drop in speed.

[#2]

Hmm, just yesterday when I tested your line you were on a 3db profile getting around 75Mb.

It could be possible that the drop you experienced caused DLM to make changes to the profile.

I'm not in work at the moment, what's your speed estimate showing at www.dslchecker.bt.com?

[#3]

This is what the bt wholesale checkers shows for my line.

[#4]

Is there any fault showing on my line that may have triggered the DLM 

[#5]

I've tested your line and I'm not identifying the cause of this. The profile the test is showing is actually still 3db. Seems that it's not as much as DLM causing this, but something else impacting the speed.

As the downstream sync is currently below your estimates I'd advise to try the test socket if you haven't already: https://community.plus.net/t5/Library/Testing-From-The-Master-Socket/ba-p/1322242

And then raising a fault to us at http://faults.plus.net

Test Outcome	Pass
Test Outcome Code	GTC_FTTC_SERVICE_0001
Description	GEA service test completed and no fault found but unable to check for customer equipment connected to modem.
Main Fault Location	OK
Sync Status	In Sync
Downstream Speed	59.2 Mbps
Upstream Speed	17.0 Mbps
Appointment Required	N
Fault Report Advised	N
NTE Power Status	PowerOn
Voice Line Test Result	Pass
Bridge Tap	Not Detected
Repetitive Electrical Impulse Noise	Not Detected
Estimated Line Length In Metres	496.7
Upstream Rate Assessment	Low
Downstream Rate Assessment	Reasonable
Interference Pattern	Not Detected
Service Impact	No Impact Observed
Home Wiring Problem	Not Detected
Downstream Policing Discard Rate	0.0
Customer Traffic Level	Upstream and Downstream Traffic Detected
Profile Name	0.128M-80M Downstream 3dB, Retransmission High - 0.128M-20M Upstream, Error Protection Off

[#6]

Have just tried via the test socket and speed still seems the same i should be on the 80/20 unlimited fiber is this still the case .

[#7]

Yeah the product is still 80/20. In this case I'd recommend raising a fault as we'll likely need to arrange an engineer to investigate this.

[#8]

I cant see anything else that would be causing the drop though i don't think openreach would look into it as according to the checker it's within there estimates therefore an engineer charge would be applied,

[#9]

Hmm, when I checked half an hour ago before I left the office you were below the Clean estimate range.

Are you looking at the Impacted when you go to www.dslchecker.bt.com?

[#10]

Impacted range says 67 high and 37 low  

Clean range is 80 high & 61.8 low

[#11]

The downstream sync is below the clean estimates so we'll be able to raise a fault to BT wholesale.

[#12]

I'll give it a few days see if DLM increases it although i can't hear any noise on the line after doing quiet line test from the test socket ,if it's no different by midweek then i shall raise a fault ticket.

[#13]

Good plan.

[#14]

I know Openreach are trialling 3db profiles in select areas i wonder if the OP is in one such area.

I believe if the 3db profile causes a problem it should automatically go back to a 6db one but i'm not sure if that is a immediate thing and it failed to do so, or it's something that happens over time.

If indeed it is a trial there might not be anything the OP can do as it would be in the hands of Openreach to sort out in the time frame they have laid out for the trial, Plusnet could let them know something is up but whether they would act on it i don't know. 

[#15]

Anoushis there a way to option out (3dB trial by BTOpenreach) ?