Low Throughput.

mist · Jul 24, 2009, 12:23:57

I appear to be getting a low percentage throughput for the past few days. On GW5 if that makes any difference. Ideas welcome ! I would expect to be getting between 70-90% and used to be around 80-84%

Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4640 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 4000 kbps
Actual IP throughput achieved during the test was - 2151 kbps = 46%

July 21st Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4640 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 4000 kbps
Actual IP throughput achieved during the test was - 1211 kbps = 26%

A little while ago Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4576 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 3500 kbps
Actual IP throughput achieved during the test was - 3022 kbps = 66%

Rik · Jul 24, 2009, 12:27:53

Pass those results to support, Mist, they can investigate for you.

Simon · Jul 24, 2009, 12:30:05

The last one isn't too bad, which suggests possible exchange congestion to me, but you'd be better off talking to IDNet, as there have been problems recently.

Edit: Like Rik said.

mist · Jul 24, 2009, 12:39:57

Okay Thank you, will copy/paste it over to support. It is getting rather annoying as not time of day related as such, which is why I discounted the evening/sports etc slowdowns !!

quandam · Jul 24, 2009, 18:54:11

I'm still getting poor speeds during the day (gw5). Have always got superb speeds during the day and manageable speeds after 5pm. This afternoon a visit to YouTube gave me serious buffering and was unable to view the clip in comfort. Trying some speed tests this afternoon the needle was unable to move, just twitch.

As I have said before, there is definitely something not right here.

Rik · Jul 24, 2009, 18:56:13

Yet we know that the GW5 realm is not the issue any longer, Q, as the central you connect to is decided on a round-robin basis, it's no longer fixed. All we can say is talk to support, because there's nothing useful you can do locally, eg wiring etc. Run BT speed tests when things are bad and let them have the results.

quandam · Jul 24, 2009, 19:00:44

Rik

Take your point. As you well know it is easier to get into Fort Knox than get a reading from the BT tester

Attached is my speed taken a few moments ago. I am used to high speeds between 6.5 & 7Mb but these are diabolical.

mist · Jul 24, 2009, 19:09:26

Well I have just done a btspeedtester and am frantically 'guggling' as need to run some command stuff for James by eeerrrrrmmm booting in safe mode, now not being technically minded this could get rather interesting on my rotten Vista system....

Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4608 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 3500 kbps
Actual IP throughput achieved during the test was - 2812 kbps = 61%

Rik · Jul 24, 2009, 19:10:17

It looks so similar to the issues others are finding, Q, but those BT tests are vital to pursue it. Try with IE if you normally use Firefox.

Rik · Jul 24, 2009, 19:11:40

Quote from: mist on Jul 24, 2009, 19:09:26
Well I have just done a btspeedtester and am frantically 'guggling' as need to run some command stuff for James by eeerrrrrmmm booting in safe mode, now not being technically minded this could get rather interesting on my rotten Vista system....

Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4608 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 3500 kbps
Actual IP throughput achieved during the test was - 2812 kbps = 61%

TBH, given the time of day, that looks like classic exchange congestion. I'd imagine James wants you to boot into safe mode with networking support, then run the speedtest, and possibly a ping, from there?

quandam · Jul 24, 2009, 19:12:07

Just tried BT test via IE, absolutely no joy. Attached is another speed tester result to prove my point.

Rik · Jul 24, 2009, 19:13:34

Trouble is, Q, BT will only take their own tester seriously, just another way to stonewall, imo.

Dopamine · Jul 24, 2009, 19:19:47

Quote from: mist on Jul 24, 2009, 19:09:26
Well I have just done a btspeedtester and am frantically 'guggling' as need to run some command stuff for James by eeerrrrrmmm booting in safe mode, now not being technically minded this could get rather interesting on my rotten Vista system....

Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4608 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 3500 kbps
Actual IP throughput achieved during the test was - 2812 kbps = 61%

Your throughput isn't 61%, it's 80% of your profile. The IP profile, not the connection rate, is the limiting factor, unless of course you are synched lower than your IP profile. It's fairly rare to see much more than 90% of your profile at this time of day, so you're not far off optimum.

Rik · Jul 24, 2009, 19:21:13

Good point, Dopamine, I missed that.

mist · Jul 24, 2009, 19:55:41

Quote from: Dopamine on Jul 24, 2009, 19:19:47
Your throughput isn't 61%, it's 80% of your profile. The IP profile, not the connection rate, is the limiting factor, unless of course you are synched lower than your IP profile. It's fairly rare to see much more than 90% of your profile at this time of day, so you're not far off optimum.

ooops yes wrong number in calculator, it is a problem in that the throughput is swinging around , gets very laggy and slow then picks up and away I go again, <grin> like those dratted intermittent faults on phone lines.

A 'battery error' showed on IDnets testing a couple of weeks ago, possible culprit my RJ11 which was changed and things improved all round so I have great faith in getting this sorted out.

Oh disaster , just been running routerstats and that is showing a problem now as well, have set upto 'capture' and will post as soon as I have some

What does this mean please

? How do I elevate it ?
Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Mist>netstat -b
The requested operation requires elevation.

Glenn · Jul 24, 2009, 20:08:43

You need to run it as an administrator in Vista. Right click on the command prompt icon, then select run as administrator, now re run the command

mist · Jul 25, 2009, 22:05:16

Quote from: Glenn on Jul 24, 2009, 20:08:43
You need to run it as an administrator in Vista. Right click on the command prompt icon, then select run as administrator, now re run the command

Thank you

Yet further disaster today, sent screen shots to support as whilst out this morning my Noise margin has suddenly gone from the default 6 to 9 and that has never happened before and have lost over a meg in speed so most unhappy...routerstatslite shows no reason for it to suddenly change !!!!

Sebby · Jul 25, 2009, 22:21:29

It can be due to the error count, rather than loss of sync, so you may not see a reason for it.

Rik · Jul 26, 2009, 10:37:07

Plus a 3db increase shouldn't cost a meg, so you may have had interleaving depth increased too.

Sebby · Jul 26, 2009, 12:30:44

Good point.

mist · Jul 26, 2009, 16:18:35

Quote from: Rik on Jul 26, 2009, 10:37:07
Plus a 3db increase shouldn't cost a meg, so you may have had interleaving depth increased too.

Well I do not understand why my noise margin shouls have been increased in such a fashion nor interleaving increased if that is so .

I have already sent screenshots of yesterdays events to CS showing a nice steady 5db noise margin with the sudden alteration for no apparent reason.

Numerous BTspeedtests which I always copy/paste in a folder for my own records over the years have never shown the need for a 9db margin plus I have records of a profile of 4db which can as others do a drop to 3.5 meg if an unforseen event occurs and a screenshot of the BTwholesale site showing I have a 4 meg line.

To say I am incandescant is an understatement.

and the reason for my meticulous record keeping is that I paid BT £150.00 to have the main socket correctly moved and placed next to the router plus pc with a new type socket/faceplate after various problems including squirrels chewing through the overhead cable. The BT engineer who did all the work also tested with his equipment and said it is a 4meg line.

I paste below two btspeedtest s the first the type I usually get the second one carried out just a few moments ago.

Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4672 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 4000 kbps
Actual IP throughput achieved during the test was - 3726 kbps

Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 3840 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 3000 kbps
Actual IP throughput achieved during the test was - 2778 kbps

mist · Jul 26, 2009, 16:20:58

Hope this upload works. Screenshot of the change

[attachment deleted by admin]

Rik · Jul 26, 2009, 16:21:19

The profile is correct for the sync speed, the throughput is correct for the profile. What's happened to your attenuation and noise margin atm?

Rik · Jul 26, 2009, 16:22:22

The screen shot suggests a re-sync triggered by error count, with an adjusted margin. Do you have any idea of what your errors are like?

mist · Jul 26, 2009, 16:25:14

ADSL Link Downstream Upstream
Connection Speed 3840 kbps 448 kbps
Line Attenuation 56.0 db 31.5 db
Noise Margin 9.1 db 17.0 db

Att. is just the same as always 56db summer 55db winter...

No idea on errors as have re-booted a couple of times,
What could cause high errors ?