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Wibble
Aspiring Contributor
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Message 1 of 35

not getting anywhere on helpline - speed/noise reducing regularly

I cant get much out of the helpdesk other than to go through the usual checks - basically after a few days use the noise margin drops and along with it the speed goes to the point of frustration when viewing the likes of Iplayer etc.

 

usually the router will reboot every 2-5 days, and the speed comes back for a short time, but this time it seems to have held for 21 days!, but has now started reducing in the last 48 hours.  How can i stop the reboots and keep a consistent service?

 

to give you an idea...here are some stats i got form the speedtest and router details since I last had to manually reboot it.

 

 02/10/2012 10:0003/10/2012 12:4804/10/2012 16:2017/10/2012  13.12
Download speedachieved during the test was3.73 Mbps3.38 Mbps3.62 Mbps2.74 Mbps
For your connection, the acceptable range of speedsis 1.2 Mbps-4 Mbps.is 1.2 Mbps-4 Mbps.is 1.2 Mbps-4 Mbps.is 1.2 Mbps-4 Mbps.
  IP Profile for your line is - 3.22 Mbps IP Profile for your line is - 3.22 Mbps IP Profile for your line is - 3.22 Mbps IP Profile for your line is - 3.22 Mbps
     
Upload speed achieved during the test was0.35Mbps0.35Mbps 0.36Mbps0.34Mbps
 Upstream Rate IP profile on your line is0.45 Mbps0.45 Mbps0.45 Mbps0.45 Mbps
     
Line state:ConnectedConnectedConnectedConnected
Connection time:6 days, 16:14:577 days, 19:04:328 days, 22:27:4121 days, 19:28:48
Downstream:3.563 Mbps3.563 Mbps3.563 Mbps3.563 Mbps
Upstream:448 Kbps448 Kbps448 Kbps448 Kbps
    
ADSL Settings   
VPI/VCI:0/380/380/380/38
Type:PPPoAPPPoAPPPoAPPPoA
Modulation:G.992.1 Annex AG.992.1 Annex AG.992.1 Annex AG.992.1 Annex A
Latency type:InterleavedInterleavedInterleavedInterleaved
Noise margin (Down/Up):5.6 dB / 19.0 dB5.4 dB / 19.0 dB5.3 dB / 19.0 dB4.0 dB / 19.0 dB
Line attenuation (Down/Up):56.9 dB / 31.5 dB56.9 dB / 31.5 dB56.9 dB / 31.5 dB56.9 dB / 31.5 dB
Output power (Down/Up):19.0 dBm / 12.6 dBm19.0 dBm / 12.6 dBm19.0 dBm / 12.6 dBm19.0 dBm / 12.6 dBm
FEC Events (Down/Up):14438543 / 68915140382 / 70215632064 / 728591248415 / 1753
CRC Events (Down/Up):62197 / 66663117 / 67864578 / 695391838 / 1734
Loss of Framing (Local/Remote):0 / 00 / 00 / 00 / 0
Loss of Signal (Local/Remote):0 / 00 / 00 / 00 / 0
Loss of Power (Local/Remote):0 / 00 / 00 / 00 / 0
HEC Events (Down/Up):330965 / 647335267 / 667346944 / 7101121536 / 3508
Error Seconds (Local/Remote):65007 / 474365686 / 476466255 / 4807141549 / 6582

 

Can anyone help as i am fed up with the "script followers" in india and their patronising "english" when speaking to me.  They even thought by changing the wifi channel that this woudl fix it!

thanks

 

PS - plugged direct into HH3a in Master socket, so no extentions.(running W7)

 

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34 REPLIES 34
Distinguished Sage
Distinguished Sage
372 Views
Message 2 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

Those figures look fine, its quite normal to see changes in connection speed and noise margin, as the line parameters change. A 4.0dB margin is fine.

 

 

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Distinguished Sage
370 Views
Message 3 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

I agree with Keith your connection is fine the changes are perfectly normal
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Wibble
Aspiring Contributor
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Message 4 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

thanks both - its just that I know that it will only get worse...so anticipate it reseting within the next day or so.

 

like i say this is the longest it has ever held a connection ....the previous record being 5 days...

 

at present viewing decent quality streaming video is not possible.  is it normal to keep having to reset the router?

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Guru
356 Views
Message 5 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

If and when the connection falls to 4db SNRm and you find the throughput slow, it'll be because the line can't sustain the IP stream at that level of margin normally.

At the point it is depleted, do your speedtest, and log the results. If it is proven that it is definitely the bitloading that's clamping it down AND NOT JUST PEAK TRAFFIC TIMES, request to set dslam 9db for your line config.

What that means is line management will use target 9db instead of 6db for the connection, and after running a while you'll probably see it running at about 7db margin, where it will bitload properly.

 

But you need to be sure really first about the throughput starvation element, and be sure the tests confirm the starvation.

 

Running dslam 9 may cause a slight reduction in sync. to begin with, but it will perform better at night.

 

If you do this, what may happen as well is this .... the dslam will have retrained using target 9, and error count will have come down also, allowing a shallower level of corrective line control, less latency and even better bitloading, and if you're lucky .....  it'll hold there, and be running very close to 6-7db, without having to intervene.

 

 

 

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Distinguished Sage
Distinguished Sage
350 Views
Message 6 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

You should have no problem streaming video at that download speed, unless you have a local networking issue, or using a wireless connection which has interference on it.

 

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Wibble
Aspiring Contributor
339 Views
Message 7 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

thanks again everyone.

 

keith - i'm probably being greedy ...i prefer to get HD content 😉

 

i'll see how it goes.

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Guru
336 Views
Message 8 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly


@Keith_Beddoe wrote:

Those figures look fine, its quite normal to see changes in connection speed and noise margin, as the line parameters change. A 4.0dB margin is fine.

 

 


Not if it won't bitload at night.   😉

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Distinguished Sage
Distinguished Sage
328 Views
Message 9 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

try checking you noise margin at say between 9/11pm and see how far it has dropped from the starting point of 4db.  the lower the noise margin falls the more likely slow download which would be helped with a higher noise margin than 4db as already suggested



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Wibble
Aspiring Contributor
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Message 10 of 35

Re: not getting anywhere on helpline - speed/noise reducing regularly

OK so as i anticipated, Noise margin dropped to as far as 2.4dB at 19:00

 

I was actually surfing other stuff, and it just got to dial up pace! so tried running speedtests, but the pages just timed out.

 

router crashed within a few minutes and required a manual restart.  So i guess it needs to settle again!..but currently have 6.6dB running 3.07 Mbps download speed on BT tester

 

any suggestions?

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