My profile was reduced from 7000 to 4000 on the 11th June. For the last 6
months I have always got between 6400 &7200 on tests. Now get between 3800 &
just managed 4200 this morning. Could uploading a small amount of data
(about 22kb) every 10 seconds 24/7 have caused or be responsible for the
profile remaining low?. Would it help to shut the router down overnight as I
understand that is when sync tests take place.

TIA Mick

Mike wrote:

What provider ? LLU or not ?

Graaham

"Mike" <reply@newsgroup.please> wrote in message
news:5LednYzZHvdzNsXVnZ2dnUVZ8sPinZ2d@posted.plusn et...
My connection has done the same ... at about the same date.
Went from the usual 6.5Mb to 4Mb.
I've sent Demon a couple of emails, but their only response is for me to
call their inbred cretin in "technical support".

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:4858B7FB.22F884E0@hotmail.com...
should go up in a few days or if it is stuck then get back to them. The
question I was interested in was if the data upload could be having an
affect as the problem appeared round about the same time I tried uploading
every 10 seconds. . If it is I could knock it down to daytime only or
increase the periods to 2 minutes. The data currently is 20kb every 20 secs
and 2 other lots of data every 120 secs all to different address's.

Mick

My experience has been that a short burst of noise can severely
degrade your sync speed.I look at my ADSL spectrum display
and it is as it's always been. It can take the best part of a week
before whatever algorithm they use sees that the noise has gone,
and sync spped suddenly jumps up to its former value, often a bit
higher, stays like that for a while, then drops back one step
to as you were originally, having found its preferred SNR figure.
Suspected, but not fully proven, if I swap in a different, spare,
ADSL modem, it sees a different box amy end, so forcing
a retrain. Then put the original box back, forcing another retrain,
and the sync speed is much better, but still takes a little while
before you get your highest sync speed back.
There are different makes of DSLAM so I can't say if they all
act the same, and their algorithms are a mystery, why does
it take so long to recover after a noise burst, yet it is quick
to respond to the burst.?

<ato_zee@hotmail.com> wrote in message
newsU36k.24460$GF6.9737@newsfe27.ams2...
swapping them and see what happens - thanks for that.

Mick

Mike wrote:

Not remotely likely AFAIK.


That's what it's supposed to be able to do. Hah, it's not P2P traffic is it ?

Graham

"Gizmo." wrote:

New ISP time ! Demon went to hell ages back.

Graham

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:4858EA83.529C3049@hotmail.com...
Agreed. It's one of those jobs I "keep meaning to do" /

Demon went down the shitter when they moved tech support from Southend to
India.

"Gizmo." <admin@skyhighrecruit.info> wrote in message
news:eH66k.15997$8H5.13958@newsfe10.ams2...
tech support - I left NTL/Virgin after being with them 8 years due to
support with extremely low speeds (quite often a low as a few hundred kbps)
and have had extremely quick responses to any queeries. They even got me
migrated in about 4 days just coming up to Christams eve when I was having
trouble migrating to the Post office broadband who had a software problem
with their ordering system and were going to take at least 7 weeks with no
promises even then. I have only had a couple of dropped connections in the 6
months and no drop in speed until now so as long as the support stays in the
UK then I will be staying with Plusnet.

Mick

"Eeyore" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:4858EA47.D87E2547@hotmail.com...
webcam set to watch the local area.

Mick

Gizmo. wrote:
The MAC issuing desk is still in the UK, and a model of efficiency. You get
a code within a few minutes. Its a shame the rest of their helpdesks are
rubbish as one wouldn't then need the MAC one.


- Nigel (recently ex Demon).



--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/

In message <29mdnQqLurz4UcXVnZ2dnUVZ8v3inZ2d@posted.plusnet>, Mike
<reply@newsgroup.please> writes

AIUI the DSLAM adaptive system takes a series of line drops (10 inside
one hour period I have heard) as symptomatic of a noisy line, and
increases the target SNR from the basic 6dB to 15dB. This results in a
significant reduction in sync speed.

The slow recovery (requiring stable periods of a week or more) for a SNR
reduction of 3dB is a (presumably) deliberate attempt to ensure that
lines subject to intermittent noise do not yo-yo. Someone (BT?) having
decided that slower but stable is preferable (i.e produces fewer support
calls) to fast but erratic.

If you check your router stats you should see that the SNR is sitting at
(probably) 15dB. If it is then something (a longish period of noise)
caused your router to retrain multiple times over a short period, and
the DSLAM reacted - I had this happen with a mains glitch which caused
my router to misbehave.

If its sitting at 6db, then you have had a change in the line quality.

When the data transfer started, did this coincide with a new device
(webcam?) A dodgy (electrically noisy but working) device PSU can
generate incremental noise at ADSL frequencies.

Regards.

--
Peter R Cook

Eeyore wrote:
Data burst like that I don't think so............

P2P is a continual upload & download...

I replied to Plusnet that there was no change in the speed and received the
following within 30 minutes or so.

START
We are not showing an increase in the profile rate of your line, however it
can sometimes take a disconnect of the broadband to jog it into action. If
your connection rate has not gone up by tomorrow morning please let us know
and we'll raise it to BT for a manual change.

Circuit Sync Status : Circuit In Sync
Mux Port Status : In Service Upstream Link Info Loop Loss Loop Loss Add
Text SNR Margin Errored Seconds HecErrors Cell Count Speed
0.5 24 0 0 4700 448
Downstream Link Info Loop Loss Loop Loss Add Text SNR Margin
ErroredSeconds HecErrors CellCount Speed
1 14 0 0 26236 8096
DSL Max Data BIP Interface Data Current line rate Line rate change
timestamp Maximum Stable Rate Recalcuated ProfileTimestamp Maximum Stable
Rate
4000 2008-06-11T12:09:05 N 2006-12-05T04:55:11 7392
Fault Threshold Rate Interleaving Flag ServiceOption ServiceOption Status
ServiceOption Update Timestamp
5913 A 1

END

Anybody have any idea how long BT take once it is raised with them? Do they
normally take hours or days

Mick

"Mike" <reply@newsgroup.please> wrote in message
news:U4adnT2vNuU4r8TVnZ2dnUVZ8vudnZ2d@posted.plusn et...
I've got a similar thing going with Plusnet right now. My speed (long line)
used to be 2 to 3.5 Meg but has dropped to - and stuck at - 1.5 to 2 Meg.
Over the last couple of days they've been thoroughly investigating and have
now referred the problem to BT (expected update tomorrow morning).
They've been very good with feedback so far.
Keeping fingers crossed.

George

Mike wrote:

Yes. Sometime an actual arse kick does the trick. They're not telling you
bollocks. RADIUS can only do so much it seems.
http://en.wikipedia.org/wiki/RADIUS

Graham

Eeyore wrote:
Don't forget RAMBO which can have it's own little quirks...

kraftee wrote:

Why bother when you could call on Lara Croft ?

Graham

Peter R. Cook:
YES. That's the problem. My understanding is that BT changed the way the DLM
operates !
Can anyone confirm this ?

My BT1801HG is capable of 2.8Mb/s on 6dB SNR and 51dB att. ~95% of the time.
We get random noise spikes and even though the router works down to
2dB SNR, it does disconnect every 3 or 4 days, but almost always re connects
straightaway.
Previously it was possible to bring it back 'up to speed', whenever the SNR
got over the 6dB threshold, just by re training the DSL.

However, lately it won't, I even got my ISP - PlusNet to reset it back down
to 6dB,
but it has since climbed up to 12dB and they REFUSE to do it again. They
said it should be left alone for at least five days, but it just doesn't
stay up for that long !

I am now stuck on synch of 1.8Mb/s, but actual download speed of 0.8Mbps.
Quite simply I am prevented from making the best use of my connection. It's
MY connection and I should be able to chose between slow and steady or fast
with drop outs, which happen anyway !
If my car would operate at 60% of it's capability, I could get it replaced
or get my money back.

How can we get BT to listen ?
Otherwise the only thing I / we could do is switch to mobile broadband !
Thanks, regards,
Martin