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Aspiring Contributor
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Message 1 of 12

Slower ADSL since bad storms last weekend

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I used to get a fairly good solid 7.5 to 8 Mb/s on ADSL.  The SNR margin was reported at 6 dB.  

Last weekend there were very bad thunderstorms here, wich caused some instability.   Now I am getting under 5 Mb/s.  I notice the SNR margin has increased to 12 dB.

Will BT's systems reduce the SNR margin automatically and restore better performance, that the line, is capable of, or do I need to find out if I can get the line reset?

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Distinguished Sage
Distinguished Sage
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Message 2 of 12

Re: Slower ADSL since bad storms last weekend

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Please read  Why has my speed dropped

You will need to connected to BT Broadband to access any links I post which are hosted on my website..
If you are connected to BT Broadband, and you cannot access them, then please let me know on this thread. Thanks.

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Distinguished Sage
Distinguished Sage
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Message 3 of 12

Re: Slower ADSL since bad storms last weekend

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if your connection is now stable then the noise margin will start to reduce down to normal 6db with corresponding increases in connection speed  this should be automatic



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Aspiring Contributor
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Message 4 of 12

Re: Slower ADSL since bad storms last weekend

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It's now around 12 days with a stable connection since the bad strosm caused SN margin to increase to 12 dB, before that it was stable for months at 6 dB.

 

DLM is very quick to slow lines down but very slow to improve them again.  Would it be possible to get a DLM reset please?

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Distinguished Sage
Distinguished Sage
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Message 5 of 12

Re: Slower ADSL since bad storms last weekend

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Can you post the stats from your router please



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Aspiring Contributor
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Message 6 of 12

Re: Slower ADSL since bad storms last weekend

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Interface :
wan-wan2
Type :
ADSL
Firmware version :
05-07-02-08-00-01
Tx Cells :
3330
Rx Cells :
147228
Tx CRC errs :
47
Rx CRC errs :
2067
Mode :
G.dmt Annex A
State :
SHOWTIME
UpSpeed :
800000
DownSpeed :
5856000
SNR Margin :
10
Loop Att :
45
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Moderator
Moderator
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Message 7 of 12

Re: Slower ADSL since bad storms last weekend

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Hi @ccarmock Sorry your connection has slowed since the stormy weather.

We will be happy to have a look at your connection if you send us your details. You can contact us by clicking on my user name and selecting contact the mods.

Thanks
John

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Moderator
Moderator
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Message 8 of 12

Re: Slower ADSL since bad storms last weekend

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Hi @ccarmock I can see that you have sent over your details. Once you reach the top of the queue one of the team will be in touch with you after the weekend.

Cheers
John

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Aspiring Contributor
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Message 9 of 12

Re: Slower ADSL since bad storms last weekend

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Thank you John

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Moderator
Moderator
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Message 10 of 12

Re: Slower ADSL since bad storms last weekend

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Hi @ccarmock Thanks for taking my call earlier and just to confirm that I have placed an order to reset the SNR margin. This will complete in the next 24 hrs. Post back and let us know how your connection is after this has completed. 

Cheers
John

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