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Standard User DrTeeth
(knowledge is power) Sun 30-Oct-11 01:17:24
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Speed increase


[link to this post]
 
Hi,

My max d/l speed has jumped from 3.6MB/s to 4.7MB/s and my profile is now 38714.

My upload speed seems to have dropped from the previous 1 MB/s to 0.8 MB/s

What has BT done? My modem and router have not been rebooted for ages.

DrT

Stress - the condition brought about by having to resist the temptation to beat the living daylights out of someone who richly deserves it.
Standard User MrGrumpy
(eat-sleep-adslguide) Sun 30-Oct-11 19:44:17
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Re: Speed increase


[re: DrTeeth] [link to this post]
 
Funnily enough mine has had a big tweak used to be about 31000Kbps approx

IP Profile for your line is -38714 Kbps
Upstream Rate IP profile on your line is - 10000 Kbps

Wonder if they will increase it again, maybe they are doing it in stages? Or thats the max I`ll see ??

Regards

MrG

Remember: Amateurs...built the ark.
Professionals...built the Titanic


All spelling and grammatical errors are left in on purpose
Standard User DrTeeth
(knowledge is power) Sun 30-Oct-11 19:53:35
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Re: Speed increase


[re: MrGrumpy] [link to this post]
 
I wonder what is going on, not that I am complaining. I doubt that many would notice this. I only noticed as I have a full-time download graph on display, and noticed my d/l shooting past the previously configured maximum.

DrT

Stress - the condition brought about by having to resist the temptation to beat the living daylights out of someone who richly deserves it.


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Moderator billford
(moderator) Sun 30-Oct-11 20:00:46
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Re: Speed increase


[re: MrGrumpy] [link to this post]
 
Same here, from about 34500Kbps, and it also went back to fastpath this morning.

It improved immediately after that major BT outage about a week ago, but not to the full 38717. Odd.

~~~~~~~~~~~~
Bill

[email protected] __________________Planes and Boats and ... __________________BQM
The author of the above post is a thinkbroadband moderator but it does not constitute an official statement on behalf of thinkbroadband.
Standard User Bald_Eagle1
(newbie) Sun 30-Oct-11 22:12:03
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Re: Speed increase


[re: billford] [link to this post]
 
It's probably relates to the BT change from the original 8c profile to the new 17a profile, in readiness for next year's speed doubling.

See here for a bit more detail:-

Speed increases
Standard User DrTeeth
(knowledge is power) Mon 31-Oct-11 11:20:58
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Re: Speed increase


[re: Bald_Eagle1] [link to this post]
 
I had always assumed that if one was NOT getting the max speed out of a service, then increasing the maximum would not have any benefit.

DrT

Stress - the condition brought about by having to resist the temptation to beat the living daylights out of someone who richly deserves it.
Standard User Adsl24
(fountain of knowledge) Mon 31-Oct-11 13:34:25
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Re: Speed increase


[re: DrTeeth] [link to this post]
 
Not true, because the service is now using more frequencies on the line, so similar to people who don't get the full 8Mb on ADSL Max still saw an improvement by moving to ADSL2+ (which had more frequencies)

James

James
ADSL24 Broadband
http://adsl24.co.uk
Standard User DrTeeth
(knowledge is power) Mon 31-Oct-11 13:38:00
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Re: Speed increase


[re: Adsl24] [link to this post]
 
Hi James,

Personally, I did not notice any improvement from ADSL > ADSL 2+. The any improvement was being on LLU and not being bound by BT's profiling system.

Regards

DrT

Stress - the condition brought about by having to resist the temptation to beat the living daylights out of someone who richly deserves it.
Standard User MrGrumpy
(eat-sleep-adslguide) Mon 31-Oct-11 15:35:36
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Re: Speed increase


[re: DrTeeth] [link to this post]
 
so does this mean I have reached the ceiling on my connection or is there more tweaking to come!

Regards

MrG

Remember: Amateurs...built the ark.
Professionals...built the Titanic


All spelling and grammatical errors are left in on purpose
Standard User DrTeeth
(knowledge is power) Mon 31-Oct-11 19:38:24
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Re: Speed increase


[re: MrGrumpy] [link to this post]
 
The service is limited to 40Mb/s, which appears to be our current maximum. The ceiling will be raised at some time in the future. To what and when I do not know.

DrT

Stress - the condition brought about by having to resist the temptation to beat the living daylights out of someone who richly deserves it.
Standard User WWWombat
(committed) Wed 02-Nov-11 15:28:29
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Re: Speed increase


[re: DrTeeth] [link to this post]
 
Like any DSL technology, you are limited by distance. The higher frequencies will not travel as far... so if you are distance-limited, then the change of profile (alone) will not increase your speeds.

However, it looks like BT are rolling out a change in bandplan (from 997 to 998) at the same time as the change to profile 17a.

The main differences are:
- In the existing frequencies (under 7MHz), around 0.6MHz is swapped from upstream to downstream
- The first 1.5MHz of the new frequency allocation (above 7MHz) is given to downstream; if they stuck with 997, it would have gone to upstream.

This means that, if you are distance-limited, you will still see a re-arrangement of your upstream & downstream speeds - which could be a gain as high as 5Mbps on downstream and a similar loss on the upstream (but probably only if you are on a package with a 10Mbps upstream)

And where you aren't distance-limited, you will still be limited to the 40Mbps that you've bought from the ISP. The jump to 80Mbps does not appear to be free, and will need to be ordered from your ISP.
Standard User DrTeeth
(knowledge is power) Wed 02-Nov-11 22:12:14
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Re: Speed increase


[re: WWWombat] [link to this post]
 
@ WWWombat

Thanks, that seems to explain my observations.

DrT

Stress - the condition brought about by having to resist the temptation to beat the living daylights out of someone who richly deserves it.
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