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Distinguished Sage
Distinguished Sage
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Message 21 of 35

Re: Downgrade to ADSL

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Cicero
Aspiring Expert
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Message 22 of 35

Re: Downgrade to ADSL

Thanks for that, I also read that Plusnet were giving their customers the ability to a DLM reset  to resolve the situation that my line is in.

 

can you answer my questions from a previous post please.

 

Also As I asked before can you ask for a DLM reset on my line please.

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Distinguished Sage
Distinguished Sage
194 Views
Message 23 of 35

Re: Downgrade to ADSL

customers do not have the ability to reset the DLM regardless which ISP they use as this is controlled by openreach

your conenction has dropped slightly from attainable but noise marginstill at normal 6db  this is often caused by noise on the line and given a stable conenction your connection should recover the few mb you have lost.  all figures quoted by BT are conenction speeds not download speed.  your profile is not stuck and is based on your current connection speed  so to get a higher profile you need a faster connection speed not the other way round



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Cicero
Aspiring Expert
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Message 24 of 35

Re: Downgrade to ADSL

bt openreach fttc cabinet and engineer
At present if an ISP feels that the Dynamic Line Management (DLM) profile for a UK Fibre-to-the-Cabinet (FTTC / VDSL2) based broadband line needs a reset then it usually requires an Openreach engineer visit, but progress is being made on a new remote reset solution.

The DLM system is used to control the performance and stability of related lines, which in practice means that your speed may go up or down depending upon how stable / error prone DLM thinks the line is. Broadly speaking the DLM system on Openreach’s FTTC network works pretty well, although sometimes a connection’s profile may become stuck at a lower level or other problems can occur that might benefit from a profile reset.

Unfortunately ISPs have not previously been able to perform remote resets on FTTC circuits, which is partly because to do so would require an engineer visit (attracts a cost). Last year we mentioned that Openreach were working to improve DLM by tweaking how it works and also offering an “interim” solution for resetting the caution counters (technically a DLM reset), which would allow ISPs to “request a caution counter reset on a number of their lines each day“.



Since then several ISPs (e.g. Plusnet) have started offering the option of a remote DLM reset as part of a trial with selected customers. The reset seems to take place in phases and has in a few examples helped to return some FTTC lines back to a higher speed. Today Openreach issued an interesting update to tout an “interim” solution that “will allow [ISPs] to request a DLM reset and replaces the ability to request caution counter resets” (here).

The briefing itself isn’t public, although ISPs inform us that it does indeed extend the trial from a caution counter reset to a full DLM reset, which should fix banding problems and some other issues with DLM profiles; assuming of course that the original underlying problem has been resolved first. We understand that this change will come into play from the 19th February 2018.

Using this approach means that each day an ISP can submit a list of circuits to be reset, which is then applied overnight by Openreach. A limit of 1000 circuits per day per ISP remains in place, although we’ve not seen any complaints about this restriction. Obviously this is something that ISPs don’t expect to use a lot but it’s a useful tool for them to have and could save on engineer visits, as well as satisfying some users.

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Distinguished Sage
Distinguished Sage
177 Views
Message 25 of 35

Re: Downgrade to ADSL

that is old news and nothing new

resetting the DLM is pointless if your line keeps dropping conenction as you just end up back where you started  you neeed to get a stable conenction before it is worthwhile getting the DLM reset



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Cicero
Aspiring Expert
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Message 26 of 35

Re: Downgrade to ADSL

According to my bill I am on Infinity 2 Fiber which is supposed to have an average download speed of 67mb. With my line struggling to achieve even half that I am due some money back or an upgrade to achive the speed quoted.

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Distinguished Sage
Distinguished Sage
135 Views
Message 27 of 35

Re: Downgrade to ADSL

@Cicero

as you say the 67mb is an average - so some higher and some lower making 67 average   your line is in lower side and there is nothing you can do to make it go any faster - you get as fast as your line can handle    most important thing in determining speed is distance from your street cabinet so unless you can shorten the distance between your home an cabinet you cannot get faster speed



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Cicero
Aspiring Expert
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Message 28 of 35

Re: Downgrade to ADSL

From Jan 2018 up to August 2018 my HUB5 connected at between 39000-41000 on download. Achieved download 37-38mb, regardless of the number of Boots it always connected back at these speeds until August.

From August to December 2018 the connection dropped to  34000-35000 Download.

Eact time in August and September when I reported a fault a DLM reset restored the speed.

In December it dropped down again, I left it until yesterday to report in case it recovered.

I reported a fault and engineer replaced HUB5 to HUB 6 and also bits in the CAB.

Speed currently just over 34000 on Download. Achieved download 31- 32mb

I informed engineer that HUB had rebooted 18 times between Dec 1st and yesterday 6th FEB.

He has checked my line right back to exchange and found no faults, house wiring checked 3 times no fault.

He reckons the downgrade in speed is due to CAB Loading (?).

In essence there is no explanation as to why my circuit has suddenly downgraded in download speed by around 16%.

I will give the new bits a few days to bed in and then consider further what to do unless anyone has any other suggestions.

 

 

 

 

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Cicero
Aspiring Expert
43 Views
Message 29 of 35

Re: Downgrade to ADSL

Following installation of new HUB I note the download speed has reduced further to 30 Mbs.

I lodged a complaint on Friday with a very helpful person in Liverpool. Because of the nature of the complaint she ran a load of tests again and subsequently informed me that the line was running below the contracted minimum and there would be compensation. Also I was informed there was a fault found and the engineer would be arriving on Tuesday and that some specialist would phone within 48 hours of my call, no call received as yet.

In checking back through my records I note in November 2016 I was getting 40 mb Download.

I am not bothered about compensation I just want the service returned to is original state I had in Dec 2018.

 

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Distinguished Sage
Distinguished Sage
36 Views
Message 30 of 35

Re: Downgrade to ADSL

hope engineer turns up and look forward to your updated stats



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