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Standard User oxidus5886
(newbie) Thu 22-Sep-11 21:17:37
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Disconnection Problems on TalkTalk ADSL


[link to this post]
 
Hi, I have had this issue for around 2 months now and TalkTalk and BT Open Reach are stumped.

My connection randomly drops sync several times a day with no pattern as to why.

I use RouterStats Lite to keep an eye on it, this is what the log displays around the time of a disconnection:

Thu 22 Sep 2011 19:03:38, Noise Margin= 10.4, Sync Speed= 2176
Thu 22 Sep 2011 19:03:53, Noise Margin= 10.4, Sync Speed= 2176
Thu 22 Sep 2011 19:04:08, Noise Margin= 9.4, Sync Speed= 2176
Thu 22 Sep 2011 19:04:23, Noise Margin= 8.5, Sync Speed= 2176
Thu 22 Sep 2011 19:04:38, Noise Margin= 8.3, Sync Speed= 2176
Thu 22 Sep 2011 19:04:53, Noise Margin= 9.6, Sync Speed= 1472
Thu 22 Sep 2011 19:05:09, Noise Margin= 9.0, Sync Speed= 1472
Thu 22 Sep 2011 19:05:24, Noise Margin= 7.7, Sync Speed= 1472
Thu 22 Sep 2011 19:05:39, Noise Margin= 7.5, Sync Speed= 1472
Thu 22 Sep 2011 19:05:54, Noise Margin= , Sync Speed= 0
Thu 22 Sep 2011 19:06:09, Noise Margin= 10.1, Sync Speed= 1056
Thu 22 Sep 2011 19:06:24, Noise Margin= 11.8, Sync Speed= 1056
Thu 22 Sep 2011 19:06:39, Noise Margin= 13.2, Sync Speed= 1056
Thu 22 Sep 2011 19:06:54, Noise Margin= 18.5, Sync Speed= 1056
Thu 22 Sep 2011 19:07:09, Noise Margin= 18.9, Sync Speed= 1056
Thu 22 Sep 2011 19:07:24, Noise Margin= 18.9, Sync Speed= 1056

As you can see in a matter of minutes the router changes sync speed twice and throughout these times the actual throughput never reconnects until its finished mucking around.

Openreach have now replaced/rerouted my cables from me to the exchange with the exception of one small piece of underground cable.

Anyone have any idea what is going on? There is no consistency with sync speed or noise margin, both of them dramatically change throughout the day, accompanied by these disconnections.

Many thanks in advance
Standard User BatBoy
(legend) Thu 22-Sep-11 21:27:20
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Re: Disconnection Problems on TalkTalk ADSL


[re: oxidus5886] [link to this post]
 
What router is this? Have you tried a different router?



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Standard User oxidus5886
(newbie) Thu 22-Sep-11 21:54:04
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Re: Disconnection Problems on TalkTalk ADSL


[re: BatBoy] [link to this post]
 
Hi. I did edit my post with that info earlier but it seems to have disappeared. Lol. The router atm is a netgear dg834n I believe. But I also have a linksys wag something or other. I have tried both and the symptoms differ slightly but the problem is still there on both. The netgear seems a little more stable but on average syncs at a lower speed. The linksys the opposite. However both disconnect multiple times a day with a similar pattern as posted in the log above.

I also tried a different filter and I am plugged direct into the test socket on the master socket. I also have no phone extensions in the house so it literally is a direct and unintefered connection.

Thanks.


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Standard User BatBoy
(legend) Thu 22-Sep-11 21:59:20
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Re: Disconnection Problems on TalkTalk ADSL


[re: oxidus5886] [link to this post]
 
Have they done a lift and shift at the exchange?



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Standard User oxidus5886
(newbie) Thu 22-Sep-11 22:12:20
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Re: Disconnection Problems on TalkTalk ADSL


[re: BatBoy] [link to this post]
 
I had a different problem with my connection earlier in the year and a lift and shift was done then. Would it need doing again?
Standard User MHC
(legend) Fri 23-Sep-11 00:06:54
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Re: Disconnection Problems on TalkTalk ADSL


[re: oxidus5886] [link to this post]
 
First thoughts are that there is a burst of noise appearing - could be in your house or teh neighbours. A motor could be degrading - for example the compressor on a fridge or central heating/water.

If you know it happens EVERY day but not at specific times then try having everything in the house (including fridge and freezer) turned off and just the modem, router and PC powered. See if it still occurs - if so the problem is external to you, if it doesn't occur then the problem is likely to be inside.





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M H C


taurus excreta cerebrum vincit
Standard User oxidus5886
(newbie) Fri 23-Sep-11 10:17:54
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Re: Disconnection Problems on TalkTalk ADSL


[re: MHC] [link to this post]
 
I tried turning off the fridge and the freezer. Obviously I couldn't leave them off all day but I did turn them off long enough to see the problem occur again. Log of this mornings disconnection below:

Fri 23 Sep 2011 10:08:02, Noise Margin= 8.5, Sync Speed= 2816
Fri 23 Sep 2011 10:08:17, Noise Margin= 8.6, Sync Speed= 2816
Fri 23 Sep 2011 10:08:32, Noise Margin= , Sync Speed=
Fri 23 Sep 2011 10:08:47, Noise Margin= 9.5, Sync Speed= 2112
Fri 23 Sep 2011 10:09:02, Noise Margin= 7.3, Sync Speed= 2112
Fri 23 Sep 2011 10:09:17, Noise Margin= 7.3, Sync Speed= 2112
Fri 23 Sep 2011 10:09:32, Noise Margin= 8.1, Sync Speed= 2112
Fri 23 Sep 2011 10:09:47, Noise Margin= , Sync Speed=
Fri 23 Sep 2011 10:10:02, Noise Margin= 9.6, Sync Speed= 1632
Fri 23 Sep 2011 10:10:17, Noise Margin= 10.4, Sync Speed= 1632

I dont have any neighbours anywhere near as I am on a private driveway. Also my house is fairly large so the appliances you mentioned are nowhere near the router, but turned off and the problem still happens.
Standard User MHC
(legend) Fri 23-Sep-11 10:35:40
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Re: Disconnection Problems on TalkTalk ADSL


[re: oxidus5886] [link to this post]
 
Leaving the fridge / freezer off for several hours is normally OK - provided they are not opened every few minutes, but as you have seen the problem with them off they can be ruled out. What about any boilers or heating/hot water pumps? Washing machine, waste disposal unit ...

The source does not need to be close to the router - RFI from a motor especially one where the brushes are worn or breaking up can be horrendous.

Then at the end of your drive or down the road ...





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M H C


taurus excreta cerebrum vincit
Standard User oxidus5886
(newbie) Fri 23-Sep-11 10:43:04
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Re: Disconnection Problems on TalkTalk ADSL


[re: MHC] [link to this post]
 
Thanks for getting back to me so quickly I really appreciate it.

The washing machine is off during the day all day and the heating system is off at this time of year. The boiler does come on occasionally to heat the hot water but the boiler is only 2 months old and the other end of the house. Our appliances in general (fridge and freezer aside) only get used in the evening.
Standard User MHC
(legend) Fri 23-Sep-11 10:57:41
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Re: Disconnection Problems on TalkTalk ADSL


[re: oxidus5886] [link to this post]
 
I know you say it is at the other end - but the boiler is connected to some wonderful antennas ... the copper pipes.

The signal level at the router is down in the microvolts region and can easily be interfered with.

At least if you can totally prove that nothing in the house is to blame then you can get TT to investigate outside. This is why I suuested EVERYTHING in the house apart from PC & modem/router turned off.





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M H C


taurus excreta cerebrum vincit
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