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    Strange speed slowdown

    This is a discussion on Strange speed slowdown within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hello everyone, i hope someone can shed some light on this issue, i've tried everything i can think of... First, ...

    1. #1
      leeharding's Avatar
      leeharding is offline Sky User Member
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      Strange speed slowdown

      Hello everyone, i hope someone can shed some light on this issue, i've tried everything i can think of...


      First, my setup:

      - sky broadband max with the DG834GT Netgear router
      - iMac 3.06GHZ Intel Core 2 Duo 4GB ram
      - Sydenham exchange
      - wired connection to the router
      - average download speeds of 16000 kbps
      - Thundernews Unlimited usenet account with 20 connections and secure EU/US servers
      - variety of software (nzbdrop, unison etc)


      The problem:

      After a few minutes (sometimes shorter, sometimes longer) of downloading with great speeds (16000kbps) i experience a slowdown to about 50kbps.

      Occasionally it works fine, and previously it has worked ok.

      Also, if i pause the download then restart it, i get the fast speeds again... until it slows down.

      There are no errors from any of the software: missing files, timeouts etc.


      I have tried:

      - every piece of software i can (including running pc software via parallels)
      - all servers, both US and EU and secure and non-secure
      - all available ports (non: 119, 443, 8080 secure: 563, 80 or 81) with every server as above
      - contacting thundernews support (not much help)
      - only downloading between 12am-7am (non-peak)
      - using nzb files, or browsing with unison
      - i don't have a firewall


      Can anyone help with this matter? i think i have tried as much as i can... now im tearing my hair out

      Thanks in advance,
      x


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    3. #2
      Casperuk's Avatar
      Casperuk is offline Sky User Member
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      Re: Strange speed slowdown

      what tells you is has dropped to 50kbs, is it the download or the router stats?

      i would get sky and BT to check your line as it sounds like it's either noisy or something else is wrong with it

    4. #3
      leeharding's Avatar
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      Re: Strange speed slowdown

      tanks for the reply...

      It was the download in app.

      The thing is, that my other browsing/downloads are fine, and its fine after pausing and restarting (even after 1 second pause).

    5. #4
      Casperuk's Avatar
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      Re: Strange speed slowdown

      could be the place you are downloading from, have you tried downloading something from microsoft.com or another big name?

    6. #5
      leeharding's Avatar
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      Re: Strange speed slowdown

      oops, sorry i forgot to mention that this only happens with usenet...

    7. #6
      Casperuk's Avatar
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      Re: Strange speed slowdown

      it might just be who you are downloading from, or sky could be limited the speed of the ports that are required.

    8. #7
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      Re: Strange speed slowdown

      Sky do not slow down LLU connections. I am not sure how usnet works, but if it is the same as torrents or P2P it could be your upload is saturating the connection. If you do upload at the same time s you are downloading, try restricting the upload speed. Other than that ,I can only suggest it is a problem with the Usnet servers which they will no doubt blame on Sky. Which if your other downloads are OK does not hold water.

      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.





    9. #8
      leeharding's Avatar
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      Re: Strange speed slowdown

      Im not doing anything else at the same time, so i think i have narrowed it down to 2 possible things.

      - Sky are throttling certain ports
      - My Usenet server is causing the issue

      But... i have tried a new server (Giganews) and the issue is not happening there - so great!

      except... the giganews servers operate on different ports, so i dont know whether its sky throttling ports, or the usenet server still.

      at least i have it working... for now...

     

     

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