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Weidass
Contributor
2,731 Views
Message 1 of 21

Line dropping in cold/wet weather

Hey guys,

basically the problem I'm having is that recently since the cold weather started (and more rarely after very heavy rain) I am getting pretty much nightly disconnects.

 

It happens usually after 10pm when it's coldest, and just had another one now at 6pm. When it disconnects, it always without fail reconnects at 160kbps downstream, and the DS output power drops to around 1 dBm. If I then reset the router again, it usually reconnects at the correct speed, between 6000-6600kbps downstream with about 10 dBm. Line attenuation and noise margin don't change much at all, if at all. Using a homehub 2.

 

When connected normally, my stats are as such...

 

Connection time 0 days, 00:13:02
Downstream 6,208 Kbps
Upstream 448 Kbps


ADSL Settings
VPI/VCI 0/38
Type PPPoA
Modulation G.992.1 Annex A
Latency type Interleaved
Noise margin (Down/Up) 14.7 dB / 22.0 dB
Line attenuation (Down/Up) 25.8 dB / 15.0 dB
Output power (Down/Up) 9.8 dBm / 1.6 dBm
Loss of Framing (Local/Remote) 0 / 0
Loss of Signal (Local/Remote) 0 / 0
Loss of Power (Local/Remote) 0 / 0
FEC Errors (Down/Up) 7 / 0
CRC Errors (Down/Up) 23 / 5
HEC Errors (Down/Up) 328 / 0
Error Seconds (Local/Remote) 7 / 1

 

The other big problem, is that if I don't reset the router a second time, the line stays connected at 160kbps and ends up dragging down my IP profile to the lowest setting. Upload speeds are seemingly unaffected.

 

 

So, after all that, my question is, do you think it would actually make a difference if I were to call BT and get an engineer out, or should I just put up with it and hope it goes back to normal once the cold weather goes away? Bearing in mind its usually perfect when its warmer.

 

Any help appreciated.

 

 

EDIT : Ok, it looks like I spoke too soon. That reset earlier did totally screw up my IP profile. Too it down to minimum.

 

Test1 comprises of Best Effort Test: -provides background information.
Download Speed
78 Kbps

0 Kbps 250 Kbps
Max Achievable Speed

Download speedachieved during the test was - 78 Kbps
For your connection, the acceptable range of speeds is 50-250 Kbps.
Additional Information:
Your DSL Connection Rate :6688 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 135 Kbps

 

 

So yeah, when a mod sees this, can they contact me please? Because I can't put up with such a slow connection that will take days to recover each time.

Tags (3)
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20 REPLIES 20
hamish72
Recognised Expert
2,720 Views
Message 2 of 21

Re: Line dropping in cold/wet weather

May be the wet and cold cause noise on the line

 

Have you tried a quite line test
dial 17070 option 2 and listen - should hear nothing
best done with old type analogue phone digital will do but may have slight hiss

do not use home hub phone

 

and read here

 

http://community.bt.com/t5/BB-in-Home/Poor-Broadband-speed/m-p/14217#M8397

**************************************************
If any post helps tick the star box on the left
**************************************************
Just cause Im paranoid dont mean they are not out to get me





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Weidass
Contributor
2,709 Views
Message 3 of 21

Re: Line dropping in cold/wet weather

Nope, 17070 is totally silent, no clicks or hiss. Its not the internal wiring, filters, etc. Nothing has changed my end. The signal margin is good, it has to be a problem at either the green box or the exchange.

Our master socket is one of the older ones that doesn't have a split faceplate.

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hamish72
Recognised Expert
2,697 Views
Message 4 of 21

Re: Line dropping in cold/wet weather

Noise margin is not good as 6 is the target but its not to bad at 14.7

**************************************************
If any post helps tick the star box on the left
**************************************************
Just cause Im paranoid dont mean they are not out to get me





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Weidass
Contributor
2,691 Views
Message 5 of 21

Re: Line dropping in cold/wet weather

I thought higher was better? Bigger margin is bigger signal : noise ratio.

 

I was under the impression you wanted Margin to be high and Attenuation to be Low. Isn't that the case?

 

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hamish72
Recognised Expert
2,680 Views
Message 6 of 21

Re: Line dropping in cold/wet weather

The noise figure shown in stats is not the noise you have but the ratio the system thinks you need for a stable line

 

thus if the lower margin of 6 is all a good line  requires then the higher 14.7 requirement is worse 

 

 

a simplistic explanation but should make the point Smiley Very Happy

**************************************************
If any post helps tick the star box on the left
**************************************************
Just cause Im paranoid dont mean they are not out to get me





PheeragHfre
Recognised Expert
2,676 Views
Message 7 of 21

Re: Line dropping in cold/wet weather

 


@Weidass wrote:

I thought higher was better? Bigger margin is bigger signal : noise ratio.

 

I was under the impression you wanted Margin to be high and Attenuation to be Low. Isn't that the case?

 


 

This link might help explain it?

http://www.robertos.me.uk/html/noise_margin_snr_snrm.html

 

Quote:

Noise Margin is the non-technical term for Signal to Noise Ratio Margin (SNRM). Domestic standard modems and ADSL routers often use the terms Noise Margin or SNR when reporting on its value.

 

The value reported by these, unless they give both, is never the SNR (Signal to Noise Ratio).

 

"I have this awful feeling someone is watching every move I make (one of my pet hates is router location tagging)." Marvin (A paranoid Android)
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Weidass
Contributor
2,606 Views
Message 8 of 21

Re: Line dropping in cold/wet weather

Ok, It dropped again last night. It had been fine since monday, and about 4 this morning it disconnected again, screwing my IP profile AGAIN.

I know all you people will say its my wiring, or some interference on my end, but it is not. All I would like, is either information on how to get an engineer out, or how to contact someone from the mod team, assuming they are in a position to get something done. Also, perhaps some way of forcing my IP profile to stay at 6500k (my usual connection speed) regardless of disconnections.

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Ook
Aspiring Expert
2,602 Views
Message 9 of 21

Re: Line dropping in cold/wet weather

weidass make sure to chase it up as this happens for me every 6 months or so , yet the wirings fine and after hours of dealing with "tech support" on the phone who try blaming router / pc / house wiring etc they will eventually find the problem , Also maybe try mailing the mods on here they are 1000% better than the so called phone support.
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Weidass
Contributor
2,565 Views
Message 10 of 21

Re: Line dropping in cold/wet weather

Ok, its been 4 hours now, connected as such,
Connection Information
Line state Connected
Connection time 0 days, 04:13:52
Downstream 6,944 Kbps
Upstream 448 Kbps


ADSL Settings
VPI/VCI 0/38
Type PPPoA
Modulation G.992.1 Annex A
Latency type Interleaved
Noise margin (Down/Up) 11.9 dB / 23.0 dB
Line attenuation (Down/Up) 25.5 dB / 15.0 dB
Output power (Down/Up) 11.2 dBm / 1.6 dBm
Loss of Framing (Local/Remote) 0 / 0
Loss of Signal (Local/Remote) 0 / 0
Loss of Power (Local/Remote) 0 / 0
FEC Errors (Down/Up) 1731 / 2
CRC Errors (Down/Up) 564 / 6
HEC Errors (Down/Up) 624 / 1
Error Seconds (Local/Remote) 213 / 4

and my ip profile has not gone up. I emailed the mods 4 hours ago, and not heard anything back. Could a mod or someone who can get something done either message me or post, because I'd like my profile reset. I'll give it another hour or two then start sending private messages.

Oh and I have no interest in talking to a script in India, so calling them is out of the question.
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