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    Noise margin dropping

    This is a discussion on Noise margin dropping within the Sky Broadband help forums, part of the Sky Broadband help and support category; System Up Time 08:44:06 Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time WAN PPPoA 1592341 3002707 0 ...

    1. #21
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      Re: Noise margin dropping

      System Up Time 08:44:06
      Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
      WAN PPPoA 1592341 3002707 0 17642 492110 02:08:24
      LAN 10M/100M 2997542 1588747 0 122266 5254 08:44:05
      WLAN 11M/54M 21037 25005 0 158 211 08:44:02


      ADSL Link Downstream Upstream
      Connection Speed 8928 kbps 928 kbps
      Line Attenuation 39.0 db 24.5 db
      Noise Margin 3.8 db 9.0 db


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    3. #22
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      Re: Noise margin dropping

      G.dmt can technically go up to 12mbps, but standard is 8mbps.

      If it's escalated within Openreach, it's sometimes referred to as a 'viper' case. Let's hope it's resolved soon.

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    5. #23
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      Re: Noise margin dropping

      The netgear dg834gt hold my connection at a lower snr far better than skys own sagem

    6. #24
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      Re: Noise margin dropping

      Quick update, Sky have raised a viper case, whatever that is lol, bt engineer has just been to my house and can't find anything wrong, next step is possibly a broadband boost engineer so they can delve deeper!!

    7. #25
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      Re: Noise margin dropping

      How much notice of can be taken of this kind of thing?
      ::. Kitz - Max speed calculator .::

    8. #26
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      Re: Noise margin dropping

      There is a similar tool available on the SkyUser site. They provide guidance and generally the tool on this site is quite good.

      If the wiring is excellent then you can get a connection speed at the top end of the estimate. However if you have poor quality cable (i.e. old copper or aluminium) then you will expect nearer the bottom end of the estimate or perhaps worse.

      There are other things that can influence your connection speed too, such as a filter to help reduce REIN or bad contacts.

      Sky Fibre Unlimited Pro: Connected at 80,000 kbps / 20,000 kbps
      Previous ADSL2+ Speed 19999 kbps 1153 kbps, Line Attenuation 17.5 db 6.9 db, Noise Margin 7.5 dB 8.7 dB
      Speedtest: 17.15MB/s 0.97Mb/s Ping 31 ms

    9. #27
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      Re: Noise margin dropping

      i have roughly a 2km line according to bt openreach and a 42.5db downstream line attenuation (high considering the line length?) Sky says there is a fault somewhere bt saying there isnt go figure, doing my head in now lol.

    10. #28
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      Re: Noise margin dropping

      Hopefully with the call having it's profile raised, someone with better knowledge and experience will be able to check things through now.

      I searched through for the term and found another member who had a similar escalation of their call. The fault was traced to a broken link between their Green Street Cabinet and their home. As the cable went underground, it was decided that it would be too expensive to replace the cable.

      Sky Fibre Unlimited Pro: Connected at 80,000 kbps / 20,000 kbps
      Previous ADSL2+ Speed 19999 kbps 1153 kbps, Line Attenuation 17.5 db 6.9 db, Noise Margin 7.5 dB 8.7 dB
      Speedtest: 17.15MB/s 0.97Mb/s Ping 31 ms

    11. #29
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      Re: Noise margin dropping

      Sounds about right!!!

     

     
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