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    Surprise increase of Line attenuation over night

    This is a discussion on Surprise increase of Line attenuation over night within the Sky Broadband help forums, part of the Sky Broadband help and support category; What do the graphs on RouterStats Lite show. Does it go down gradually or is it a sudden drop? If ...

    1. #21
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      Re: Surprise increase of Line attenuation over night

      What do the graphs on RouterStats Lite show. Does it go down gradually or is it a sudden drop? If it is happening at the same time each day, then something somewhere being switched on is causing it.

      TomD


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    3. #22
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      Re: Surprise increase of Noise Margin over night

      Its sudden drops, heres a graph I created from the txt files, I found the builtin graphs bit hard to manage.

      http://img832.imageshack.us/img832/2739/97893377.png

    4. #23
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      Re: Surprise increase of Line attenuation over night

      That definitely looks like a fault on the line or maybe the exchange equipment. Getting it fixed is another story. You really need an LL5 engineer out who will understand the noise graphs and make an attempt to fix the problem. It is a waste of time Sky sending a phone engineer out.

      TomD


      Please note the views and recommendations in my posts are my own and in no way reflect the views of SkyUser.


      Useful Utilites

      http://www.nirsoft.net/utils/wifi_information_view.html/ TCPOptimiser /Test Socket

      Note - When downloading always select the Custom install or you will end up with stuff you don't want.





    5. #24
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      Re: Surprise increase of Line attenuation over night

      It could be down to a source of rf interference, eg from a faulty appliance, central heating boiler, or a low energy lamp fitted in a PIR or dimmer. There an example here, of a faulty telly taking out the ADSL service for much of an estate:- Thought on energy saving bulbs :: BTwholesale DSL Implementation :: think broadband

      If you have hard-wired telephone extensions, try the router in the test socket to see if it makes any difference.

    6. #25
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      Re: Surprise increase of Line attenuation over night

      Router is currently plugged into the test socket ,

      interesting article "A Matsui portable television some 1/4 mile away. The morning evening timings were due to the fact the owner usually turned it on when he was in the shower. "

      fat chance of a mere mortal like me tracing stuff like that.

    7. #26
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      Re: Surprise increase of Line attenuation over night

      just noticed that my pings have gone throw the roof too.

      Before the drop

      2 83 ms 58 ms 56 ms cr1.smay.uk.easynet.net [82.108.11.27]
      3 52 ms 24 ms 36 ms ge3-0-0-2001.ar3.enmik.uk.easynet.net [82.111.103.241]
      4 27 ms 40 ms 70 ms te0-7-0-5.er11.thlon.ov.easynet.net [89.200.134.59]
      5 26 ms 27 ms 25 ms 212.58.238.189
      6 26 ms 71 ms 27 ms 212.58.238.153
      7 26 ms 26 ms 26 ms 212.58.239.62
      8 97 ms 49 ms 40 ms 212.58.251.44
      9 25 ms 27 ms 25 ms bbc-vip111.telhc.bbc.co.uk [212.58.244.66]


      After

      2 497 ms 597 ms 771 ms cr1.smay.uk.easynet.net [82.108.11.27]
      3 879 ms 840 ms 412 ms ge3-0-0-2001.ar3.enmik.uk.easynet.net [82.111.103.241]
      4 431 ms 395 ms 294 ms te0-7-0-5.er11.thlon.ov.easynet.net [89.200.134.59]
      5 200 ms 291 ms 381 ms 212.58.238.189
      6 541 ms 295 ms 349 ms 212.58.238.153
      7 465 ms 483 ms 380 ms 212.58.239.62
      8 299 ms 291 ms 355 ms 212.58.251.44
      9 536 ms 640 ms 490 ms bbc-vip112.telhc.bbc.co.uk [212.58.244.67]

      Something must have changed. If I am still on the gaming profile. I do understand its now peak time but pings looking pretty high for a gaming profile.


      2 46 ms 72 ms 86 ms cr1.smay.uk.easynet.net [82.108.11.27]
      3 32 ms 24 ms 23 ms ge3-0-0-2001.ar3.enmik.uk.easynet.net [82.111.103.241]
      4 27 ms 27 ms 114 ms te0-7-0-2.er11.thlon.ov.easynet.net [89.200.134.173]
      5 132 ms 67 ms 26 ms 212.58.238.189
      6 145 ms 33 ms 25 ms 212.58.238.129
      7 27 ms 26 ms 27 ms te12-1.hsw0.cwwtf.bbc.co.uk [212.58.239.222]
      8 48 ms 31 ms 38 ms 212.58.255.12
      9 46 ms 26 ms 27 ms bbc-vip011.cwwtf.bbc.co.uk [212.58.246.90]

      Pings appears to have settled down, must have been the 5pm rush.
      Last edited by Aladdin; 25-01-11 at 07:50 PM. Reason: pings back to normal

    8. #27
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      Re: Surprise increase of Line attenuation over night

      and we are now back on 19db around 9pm, I rebooted the router so that it resync back at 7Mb

      ADSL Link Downstream Upstream
      Connection Speed 7082 kbps 765 kbps
      Line Attenuation 42.0 db 21.7 db
      Noise Margin 9.8 db 8.0 db

      This 5 hours from 4pm-9pm appears to be getting very constant now, just no idea what is causing this.

    9. #28
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      Re: Surprise increase of Line attenuation over night

      just noticed that my pings have gone throw the roof too.
      These are route tracings not pings. To ping, type ping 203.85.143.99 (google.co.uk) or 212.58.244.67 for BBC


      2 497 ms 597 ms 771 ms cr1.smay.uk.easynet.net [82.108.11.27]
      This is the hop from your router to the exchange which again suggests a fault on your line or severe RF interference as suggested by Fuzzy.

      TomD


      Please note the views and recommendations in my posts are my own and in no way reflect the views of SkyUser.


      Useful Utilites

      http://www.nirsoft.net/utils/wifi_information_view.html/ TCPOptimiser /Test Socket

      Note - When downloading always select the Custom install or you will end up with stuff you don't want.





    10. #29
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      Re: Surprise increase of Line attenuation over night

      Would it be simple to request Sky to send out an openreach engineer based on my information?

      I can see Sky fighting it saying that theres no problem, you your line can only support 4Mb etc,

      BTW I am back on 4Mb this morning at 7.45am
      Last edited by Aladdin; 26-01-11 at 02:26 PM. Reason: added line drop

    11. #30
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      Re: Surprise increase of Line attenuation over night

      You really need a Broadband Engineer or one with the equipment to detect RF interference., an ordinary BTO engineer will simply test the voice line, say it is OK and depart. You could try telling Sky that you believe your line has a fault or is being subject to REIN.

      If you have no success with Sky you could consider fitting a BT 80b RF3, this will help filter out RF interference and may improve your connection. Obtainable from - BT 80B RF3 Junction Box (3 way IDC to 3 way screw connectors with RFI protection)

      TomD


      Please note the views and recommendations in my posts are my own and in no way reflect the views of SkyUser.


      Useful Utilites

      http://www.nirsoft.net/utils/wifi_information_view.html/ TCPOptimiser /Test Socket

      Note - When downloading always select the Custom install or you will end up with stuff you don't want.





     

     
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