topic Re: Slow Speed / DLM reset in Full Fibre

Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 19:04:26 GMT

Hi i noticed that my download speed has dropped alot, i have been looking at old speed tests and over the last year or 2 i have dropped from high 30's - low 40's Mbps to mid 20's at best

Could i get a DLM reset maybe to try get it back up to what was was getting?

Thanks

Re: Slow Speed / DLM reset

jab1 — Sat, 04 Sep 2021 19:23:25 GMT

Welcome to the forums, @cgordon . A DLM reset may not resolve your perceived problems. Sight of your Help desk tab (with personal details removed), and the result of a BTW Performance Tester (Advanced Diagnostics) would possibly be a better place to start

Re: Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 19:38:31 GMT

My current line speed is below the minimum guaranteed speed and i have multipul saved speed tests from 2019 and 2020 of my download speed at 38 Mbps and even as high as 44 Mbps

Re: Slow Speed / DLM reset

jab1 — Sat, 04 Sep 2021 19:45:25 GMT

As you say, your current line speed is below the guaranteed minimum, but we need to discover why. Sight of your Help Desk tab from the router would possibly give us some insight.

Re: Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 19:47:05 GMT

i dont use the plusnet router, what infomation would you like to see?

Re: Slow Speed / DLM reset

jab1 — Sat, 04 Sep 2021 19:51:04 GMT

Which router do you use? We really need your router statistics - Noise margins &c.

Re: Slow Speed / DLM reset

Mustrum — Sat, 04 Sep 2021 20:01:14 GMT

Also sync speeds and attainable speeds

Sight of the result of entering your phone number in the BTW DS:L Checker will also help - hide your phone number though.

Re: Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 20:01:05 GMT

Re: Slow Speed / DLM reset

jab1 — Sat, 04 Sep 2021 20:10:20 GMT

Something is definitely a bit flaky there, but I can't work out what. Did you spot @Mustrum 's edit asking for details of the BT Broadband checker?

Re: Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 20:23:38 GMT

Thanks il do one in a moment,

i have had the issue before a good few years ago, been with plus net years and years last time DLM reset bummped me back up to around 40Mbps thats why i asked for one.

Re: Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 20:37:30 GMT

Featured Products	Downstream Line Rate(Mbps)		Upstream Line Rate (Mbps)		Downstream Handback Threshold(Mbps)	WBC FTTC Availability Date	WBC SOGEA Availability Date	Left in Jumper
Featured Products	High	Low	High	Low
VDSL Range A (Clean)	49.4	35	7.9	6.1	32.4	Available	Available	--
VDSL Range B (Impacted)	48	32.4	7.8	5.6	27.4	Available	Available	--

Featured Products	Downstream Line Rate(Mbps)	Upstream Line Rate (Mbps)	Downstream Range (Mbps)	Availability Date	FTTP Install Process
FTTP on Demand	330	50	--	Available	--

ADSL Products	Downstream Line Rate (Mbps)	Upstream Line Rate (Mbps)	Downstream Range(Mbps)	ADSL Availability Date	WBC SOADSL Availability Date	Left in Jumper
WBC ADSL 2+	Up to 14.5	--	12.5 to 16	Available	--	Yes
WBC ADSL2+ Annex M	Up to 14.5	Up to 1.5	12.5 to 16	Available	--	Yes
WBC Fixed Rate	2	--	--	Available	--	Yes

Observed Speeds	VDSL
Max Observed Downstream Speed	32.39
Max Observed Upstream Speed	6.4
Observed Date	2021-06-20

Other Offerings	Availability Date
VDSL Multicast	Available
ADSL Multicast	Available

Premise Environment	Status
Bridge Tap	N
VRI	N
NTE FacePlate	N
Last Test Date	26-08-2021

Exchange Product Restrictions	Status
FTTP Priority Exchange	N
WLR Withdrawal	N
SOADSL Restriction	Y

Re: Slow Speed / DLM reset

Mustrum — Sat, 04 Sep 2021 20:41:44 GMT

Thanks. Whilst a DLM reset will no doubt increase your speeds again, you really should chase PN to sort out the underlying problem which keeps reducing your speeds.

How is your phone line, any noise or crackles, dial 17070 option 2 - is it your number and is it quiet?

Re: Slow Speed / DLM reset

cgordon — Sat, 04 Sep 2021 20:52:33 GMT

thanks, phone line seems fine the speed will be stable for years at a time then i notice a drop its not like a drops every week or even month, this is the second time in 10 years id guess, only noticed it recently with the kids home lots ran a few speed tests

2018 41.6 down

2019 38.1 down

in 2020 i have one 28.5 down

and now its low to mid 20's

Re: Slow Speed / DLM reset

adam945 — Sun, 05 Sep 2021 11:01:12 GMT

Hello @cgordon

Thanks a lot for reaching out. It appears that on 21/08/2021, the line cut out 52 times, there's no way of knowing introspectively why, but I can see that DLM did slow the line down, and capped your download speed to 30Mbps as a result of this.

Going forward, I've raised this issue with my colleague, who will be requesting a DLM reset with our suppliers, please allow around three working days for this to be completed.

Current profile - Downstream: 0.128M-30M with Retransmission (High). Upstream: 0.128M-20M with Retransmission (Low)

Re: Slow Speed / DLM reset

dougjbarnes1 — Tue, 22 Feb 2022 18:18:05 GMT

Funny but I'm seeing the same, my usual speed is about 32M down. 8.5M up, but over the last week the rate has dropped, using BroadBandSpeedChecker I Get

Ping Download Upload
10 ms 23.97 Mb/s 7.92 Mb/s

We had a power outage about 10 days ago, so the router has been rebooted . I suspect the speed drooff since then but I didn't check for a few days so can't confirm the two correlate