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Standard User Brunel
(experienced) Sat 07-Apr-18 12:00:58
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SUGGESTIONS ON HOW TO PROGRESS THIS


[link to this post]
 
I have an E.O. line of approx 4.2Kms according to OR tech. My speed has been capped by T.T's DLM to 1024Kbps.

I am using one of my trusty 2WIRE 2700HG-B routers. It is showing a downstream atten. of 70dB. The downstream S.N.R.M varies between 12dB & 8dB.

I have had two visits by OR, a new filtered faceplate fitted, no extensions, and a pair swap.

Both visits confirm that there is no fault showing.

Is there anyway I could improve the situation? Re. poor speed?

Thanks
Administrator MrSaffron
(staff) Sat 07-Apr-18 12:19:30
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: Brunel] [link to this post]
 
4.2km sounds wrong...70dB is more like 5.5 to 6km of copper

To improve you need to go somewhere that will let you either be in control of the DLM yourself or the service has no DLM.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Brunel
(experienced) Sat 07-Apr-18 12:41:05
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: MrSaffron] [link to this post]
 
Was told many years ago that it was >6Kms.

How do I find an ISP, that does not use DLM?


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Standard User baby_frogmella
(fountain of knowledge) Sat 07-Apr-18 12:51:35
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: Brunel] [link to this post]
 
Assuming you're on TT LLU, have you actually asked their forum OCEs to turn off DLM on your line? I know this could be done previously but this may have changed in recent times.

Otherwise moving to a TT reseller such as AAISP and Xilo might be your best bet as they don't use DLM on TT lines. AAISP can also set a 3db noise margin on TT lines to squeeze every last bit of speed from your line.

FluidOne FTTP On Demand 330/30 Mbps
Linksys EA9500v2
Standard User Brunel
(experienced) Sat 07-Apr-18 12:57:38
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: baby_frogmella] [link to this post]
 
Yes, I have a pending post on the TT forum now. All that is offered is another visit from OR with the usual warning of possible charges.

As far as I know, they refuse to turn off DLM,usually stating it is out of their control.
Standard User ian007jen
(experienced) Sun 08-Apr-18 15:19:09
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: Brunel] [link to this post]
 
2WIRE 2700HG-B


Have you tried a newer broadcom router/modem...a zyxel VMG8924-B10A for example....you can set your own target SNMR; this may only give you an approx 1 Mbps increase in sync.

With the zyxel and the broadcom chipset you can run monitoring software http://forum.kitz.co.uk/index.php/topic,21323.0.html for example.

Ian
Standard User Zarjaz
(eat-sleep-adslguide) Sun 08-Apr-18 19:33:53
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: MrSaffron] [link to this post]
 
My thoughts exactly, 4km isn’t/shouldn’t equate to 70db attenuation.

Standard User Brunel
(experienced) Sun 08-Apr-18 20:27:34
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: ian007jen] [link to this post]
 
Unfortunately, lowering the SNRM brings a huge increase in errors. DLM sees this and lowers the speed.

The factors involved here appear to be, the poor quality of the line (possible aluminium), all my neighbours have a similar poor line, plus the added problem of the DLM.

https://www.thinkbroadband.com/speedtest/15232158066...

I used to be on a fixed 6dB SNRM, and synched at circa 1600kbps.

Edited by Brunel (Sun 08-Apr-18 20:40:29)

Standard User Brunel
(experienced) Mon 09-Apr-18 10:38:43
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: Brunel] [link to this post]
 
Received this from TT

"I've optimised the connection and DLM will be monitoring this over the next 24hrs."


BUT... Nothing has changed??

We recorded your speed as
Download 838 KBits/s (104.75 KBytes/s)
Upload 432 KBits/s (54 KBytes/s)

"Hi Brunel

I've checked your previous thread and can see that we were unable to increase the sync speed any further and the next step would be to arrange an engineer visit."


Looks like we are now at a stalemate.

Edited by Brunel (Mon 09-Apr-18 11:36:13)

Standard User Brunel
(experienced) Mon 09-Apr-18 12:45:32
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Re: SUGGESTIONS ON HOW TO PROGRESS THIS


[re: MrSaffron] [link to this post]
 
I now believe that I am pushing them a little further.

"Unfortunately we are unable to deactivate DLM or change the line profile, apologies for this.
I can raise this as a complaint and a Complaints Manager can then look into this further. Would you like me to arrange this?"
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