"George Weston" <geoweston@NOSPAMgooglemail.com> wrote in message
news:6bssjiF3d8m78U1@mid.individual.net...
Update:
Far from improving my speed, Plusnet got BT to improve my SNR, due to noise
on the line. This has resulted in an even slower speed, which is now stable.
It might sound stupid but I was happy with the occasional disconnection,
provided that my speed increased to what it was (up to 3.5 Meg).
It's now a steady 1.8 and not going anywhere else.
GRRRRR

:-(

George

Martin² wrote:
The one you're interested in would be at site, that is your home, normally
done from the master socket after it has been changed out for the newer
version. It can be used anywhere in the network between you & the exchange
to try & locate problems causing excessive erroring on your line (although
the line test perfect electrically).

George Weston wrote:
Well it is cheaper than them paying Openreach to go to site (possibly a
number of times) to try & pin down what is causing the excessive errors.

I know that there is a group of people who don't mind the occaisional
dropouts but the basic service is aimed for the most stable connection
possible, hence the increase of your SNR threshold (to possibly 12 or 15dB)
in order to make it stable. Do what you can to tweak your line, faceplate
filter, good quality extension wiring etc etc...if you can improve your end
you would have the leverage to get them to reduce your threshold & possibly
increase your speeds again.

On Mon, 23 Jun 2008 17:18:48 +0100, George Weston wrote:

There is a tool called DMT that will allow you to tweak the SNR on
compatible routers to achieve a better sync rate.

http://dmt.mhilfe.de/

--
<http://ale.cx/> (AIM:troffasky) (UnSoEsNpEaTm@ale.cx)
19:07:55 up 5 days, 18:49, 2 users, load average: 1.05, 1.12, 1.09
Convergence, n: The act of using separate DSL circuits for voice and data

If they have set your SNR threshold in tablets of stone,
at an unrealistic level, then you have a problem.
By experiment I have found I can force a retrain by swapping
routers. I'm assuming when the connection starts up there
is a handshake, what do you support, ADSL, ADSL+,
what's your received signal level, SHR, and so on?
So I swap in an ADSL+ modem, then an ADSL only
modem, that has a long line UK2 flash, forcing
retrains, and my speed rises. The ADSL only
with UK2 flash gives the best sync speed.

<ato_zee@hotmail.com> wrote in message
news:EPR7k.43603$GF6.10875@newsfe27.ams2...
All I have is an ancient Speedtouch 330 "frog" USB modem.

George

"kraftee" <kraftee@b&e-cottee.me.uk> wrote in message
news:f7ednYiZ5qAQe8LVnZ2dnUVZ8uudnZ2d@bt.com...
Well they did offer me the option - if I was prepared to pay through the
nose for an abortive visit.

Thanks for the tips.
I may well get a faceplate, disconnect bell wires, etc, if that's the only
way forward.

George

Might be worth looking on eBay for a cheap ADSL only router,
non wireless, with low postage.

As everyone wants wireless, and the faster, current production
modem/routers, the old ones, are going quite cheap.
I assume your PC has a network RJ45 connection, or
a network ethernet card.
If not you'll just have to stick with the USB, although
these aren't noted for best performance.
OK for short, low attenuation, good SNR lines
(quiet - not long enought to pick up much noise)
lines, but not ideal for the longer high
attenuation, poor SNR, lines.

George Weston wrote:
It could be, best guestimates for this line stated 3.5Mbps (IP profile
3Mbps) with fitting a faceplate filter, using a ADSL2+ patch lead (both from
ADSLNation, yes I didn't get one off the van) & generally putting the rest
of my extension wiring into better order I now have an IP of 5Mbps with a
sync rate which seldom falls below 5.5Mbps. So it can be done.

"kraftee" <kraftee@b&e-cottee.me.uk> wrote in message
news:MIqdne063Z8nmP3VRVnyuQA@bt.com...
Sounds promising - will have a go!

George

"alexd"
None of my routers are on the list, which appears to be pretty old.
The newer Drayteks have that build in, but
are you sure that the DSLAM at the exchange will take any notice of that,
or will it stick with the BT decreed profile ?
Thanks, regards,
Martin

"kraftee" wrote

Well, that means an openreach visit at £180+ !
The trouble is we got interminent line spikes / disconnections, sometimes
every few hours for weeks on end, mostly every 3 or 4 days, sometimes it's
OK for several weeks.
It could take days to track down what's causing it....:-(
Regards,
Martin

Martin² wrote:


I hada HUGE issue whenI wento ADSL max. Connections were fast but
flakey. By SNR ended up at 12db at te DSLAM and it ws still falky.

After several days of net research I discovered the telnet interface,
and started changing every parameter in sight: one was something like a
'turbo' switch..cant remember what it was called. I switched it off and
immediately dropped speed by about half. I now am at normal operation.

ato_zee@hotmail.com wrote:
SNR ratio at the DSLAM has to be manulally reset.

ato_zee@hotmail.com wrote:
yep. I got a Dlink 504 for peanuts.

Does need all teh latests firwmwre patches and a turn off of the turbo
functin tho.

Buta new netgear is only 30 quid or so IIRC.

Martin² wrote:
The engineer could still detect errors with APTS which may preclude any
noise spikes, but you aren't wrong some 'faults' tend to go on for ever
before the engineer is there just at the right time.

kraftee wrote:
Sorry to answer myself, but there is another factor & that is that the
engineer actually wants to find out what is wrong.

On Tue, 24 Jun 2008 03:03:07 +0100, Martin² wrote:

Unfortunately I can't answer that as I'm on Be. I can tell you that when
I tweaked the SNR on my Be router, I managed to get an extra meg out of
it.

--
<http://ale.cx/> (AIM:troffasky) (UnSoEsNpEaTm@ale.cx)
22:09:52 up 6 days, 21:51, 3 users, load average: 1.08, 1.06, 1.06
Convergence, n: The act of using separate DSL circuits for voice and data

"kraftee"
Combined with the fact BT doesn't want to spend any money,
we don't stand a chance of the line ever being fixed.
No chance of any fibre coming this way, we don't even have sewers,
so it just waiting to see if mobile broadband will get good enough...
Thanks for your answers,
regards,
Martin

"George Weston" <geoweston@NOSPAMgooglemail.com> wrote in message
news:6cahnbF3g1c1dU1@mid.individual.net...
Update - haven't done anything myself yet but speed has now dropped to 1.3
Meg, still with disconnections.
Have alerted my ISP and we'll see....

George