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    Drop outs because of noise margin?

    This is a discussion on Drop outs because of noise margin? within the Sky Broadband help forums, part of the Sky Broadband help and support category; Ok, just moved into a new house share and the guys here tell me they have problems with the connection ...

    1. #1
      Raktael's Avatar
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      Drop outs because of noise margin?

      Ok, just moved into a new house share and the guys here tell me they have problems with the connection dropping out. I thought I'd have a dig around and see what I could find in the router status, and this is what I got. Please share your thoughts and what you think we can do to have a better connection


      ADSL Link Downstream Upstream
      Connection Speed 4544 kbps 768 kbps
      Line Attenuation 35 db 9 db
      Noise Margin 3 db 14 db

      The highest noise margin I have seen whilst checking has been 3/4. The lowest is 1! I think the best to have is what, around 6.9db right? We need you!


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    3. #2
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      Re: Drop outs because of noise margin?

      Looks like you also have high errors on the line because you should be getting a higher sync with your current attenuation.
      Are you connected to the master socket?
      Tried in the test socket?
      Any extensions?
      And yes, the ideal NM is around 7dB.
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      Re: Drop outs because of noise margin?

      As Mystic Eddy says try the master/test socket. Post the detail then. Check the link below to find the test/master.

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      Re: Drop outs because of noise margin?

      Well, I've checked back this morning and it seems to have really perked up!

      ADSL Link Downstream Upstream
      Connection Speed 4608 kbps 768 kbps
      Line Attenuation 34 db 9 db
      Noise Margin 10 db 14 db

      So it seems when it hits like 8pm onwards it drops all the way down to 1/2/3 db, strange!

    6. #5
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      Re: Drop outs because of noise margin?

      You should be syncing up around 10-11Mb. Check it in the TEST socket as already suggested. It is normal for the noise margin to drop in the evening, but not as low as you are going.

      TomD


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      Re: Drop outs because of noise margin?

      Another one to check is, if the sky digibox is plugged directly into the BT phone socket or via a filter. Many sky engineers (no offence to any reading) forget that the digibox also needs to go via a filter but instead plug it directly into a phone socket.

      If you still get the drops at night via the master/test socket try and watch it and see if there is a particular time, and if anything else is happening at this time (eg central heating, christmas lightig (I know it aint christmas yet), street lighting (as this has been proven int he past to interfere with LLU) and so on.

      I dont think it will have to get to these later points though, but its orth keeping in mind just incase you dont manage to solve your problems.
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      Re: Drop outs because of noise margin?

      I got a similar problem.

      Tried different filters, different sockets, master socket and currently running on test socket behind faceplate of master socket and getting noise margins starting off around 10 but dropping to 2,3,4,5........

      Could this be a faulty router?

      Ive been told i will get another router sent out but if this dosnt resolve my daily intermitant drop offs then there really isnt anything else that can be done.

      Poor CS i think.
      Last edited by Nu773r; 27-08-08 at 06:35 PM. Reason: correct my bad typing skilz

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      Re: Drop outs because of noise margin?

      Quote Originally Posted by Nu773r View Post
      I got a similar problem.

      tested on master socket and getting noise margins starting off around 10 but dropping to 2,3,4,5........

      Could this be a faulty router?

      Ive been told i will get another router sent out but if this dosnt resolve my daily intermitant drop offs then there really isnt anything else that can be done.

      Poor CS i think.
      It could be anything, Post your stats please. What sort of time does it drop out ? Have you tried the test socket, not just the master socket ?

     

     

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