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    Line errors and loss of speed

    This is a discussion on Line errors and loss of speed within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hi, I've been having a few issues with my Sky BB connection over the last week and today it peaked ...

    1. #1
      Ross L's Avatar
      Ross L is offline Sky User Member
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      [SOLVED] Line errors and loss of speed

      Hi,

      I've been having a few issues with my Sky BB connection over the last week and today it peaked with my BB connection dropping from 18mb to 10mb over night. I contacted Sky about this and they said that there was a lot of errors on my line and they then ran through the whole "Run it through the master socket" routine, as they do (I'm always plugged into the master socket) and get back to them. Before getting back to them, I went out and brought new RJ11 cable and a new ADSL filter thinking they may be the culprit. I've plugged these in and the connection has jumped back up to 17.4mb, but I've noticed that as soon as I turned it on, I had 2 uncorrectable errors on the downstream and 1 on the upstream.

      Mode: ADSL2 PLUS
      Type: ANNEX_A
      Status: Showtime

      Downstream Upstream
      Rate (Kbps): 17440 kbps 1040 kbps

      SNR Margin (dB): 6.1 8.0
      Attenuation (dB): 26.0 14.5
      Output Power (dBm): 20.3 12.3

      Super Frames: 55580 55582
      RS Correctable Errors: 45995 3
      RS Uncorrectable Errors: 2 1

      HEC Errors: 14 0
      Total Cells: 56266 40793
      Data Cells: 56240 40793
      Bit Errors: 0 0

      My question is, is there an "acceptable" amount of uncorrectable errors, or do I have an issue elsewhere looking at my stats?

      Thanks in advance for any assistance.

      Ross
      Last edited by Ross L; 18-09-11 at 06:11 PM. Reason: Issue solved


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    3. #2
      Ross L's Avatar
      Ross L is offline Sky User Member
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      Re: Line errors and loss of speed

      Had an email from Sky at 2050hrs saying that they tested my line and it passed with no errors but ever since, my router has resynced 6-7 times

      Current router stats (after 6 minutes of uptime):

      Mode: ADSL2 PLUS
      Type: ANNEX_A
      Status: Showtime

      Downstream Upstream
      Rate (Kbps): 17198 kbps 1023 kbps

      SNR Margin (dB): 6.3 9.0
      Attenuation (dB): 26.0 14.6
      Output Power (dBm): 20.3 12.3

      Super Frames: 12876 12871
      RS Correctable Errors: 63586 0
      RS Uncorrectable Errors: 1 1

      HEC Errors: 0 0
      Total Cells: 1127470 734651
      Data Cells: 7110 3665
      Bit Errors: 0 0

    4. #3
      Scubbie's Avatar
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      Re: Line errors and loss of speed

      I might be that someone was still playing with your connection.

      I would be tempted to leave it for tonight, little point in chasing it just now anyway, and see what happens in the morning.

      If there is still a problem, contact Sky Support again.

      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

    5. #4
      Ross L's Avatar
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      Re: Line errors and loss of speed

      Thanks for the reply.

      This issue has been happening since I installed the router nearly 2 weeks ago. My line is resyncing a minimum of twice a day, sometimes up to 6 times a day.

      The current stats are sitting at:


      Mode: ADSL2 PLUS
      Type: ANNEX_A
      Status: Showtime

      Downstream Upstream
      Rate (Kbps): 16785 kbps 1040 kbps

      SNR Margin (dB): 6.5 8.5
      Attenuation (dB): 26.0 14.5
      Output Power (dBm): 20.3 12.3

      Super Frames: 1952475 1952469
      RS Correctable Errors: 13841 64
      RS Uncorrectable Errors: 1007 1

      HEC Errors: 14803 0
      Total Cells: 87048 79982
      Data Cells: 2564486 315559
      Bit Errors: 0 0


      I have read online a lot of stories with the chipset (Trend) on the 2740R not running well at all on Sky or TalkTalk connections, so I am going to return the router and bite the bullet and purchase a Billion BiPac 7800N.

    6. #5
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      Re: Line errors and loss of speed

      To quickly prove/disprove the router, could you plug your Sky router back in, or has it died?

      Leave it running for a few hours to see how stable it is, then give Sky a call to see if you can find someone who can confirm whether or not there are any fresh errors showing on your line.

      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

    7. #6
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      Re: Line errors and loss of speed

      Thanks for the reply.

      I ran my 2740B as all my previous Sky routers burned out and that ran fine, so it seems like the 2740R is just no good.

    8. #7
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      Re: Line errors and loss of speed

      Do you have a friend whom you could talk with?

      Perhaps you could take your router to their home or borrow their Sky router.

      I would also be concerned why you have gone through so many Sky routers. What kind of things happened to them and which models were they?

      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. #8
      Ross L's Avatar
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      Re: Line errors and loss of speed

      Thanks for the reply.

      I'll be getting someone else to test the router for me (they are on Sky also).

      I've had 2 Netgear routers supplied by Sky and they both overheated within the first 3 months of having them. I stopped using Sky routers back in 2009/2010 due to it.

    10. #9
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      Re: Line errors and loss of speed

      They do not give enough emphasis to standing the router on its end to allow all-round air flow. I would guess you were leaving it flat. Using a router on flat is a good way to make it into a toaster

      This applies to almost all routers, not just the Sky ones.

      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.





    11. #10
      Ross L's Avatar
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      Re: Line errors and loss of speed

      If I remember correctly, the Netgears had a side stand which I used. I must have just been extremely unlucky.

     

     
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