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    Faster Connection but now unstable

    This is a discussion on Faster Connection but now unstable within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hi Folks After reading various threads on this excellent site I decided to try and improve my connection speed by ...

    1. #1
      nexus.sixx's Avatar
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      Faster Connection but now unstable

      Hi Folks

      After reading various threads on this excellent site I decided to try and improve my connection speed by going around all of my extensions and ensuring that only wires 2 and 5 are connected.

      The net result is an increase in the downstream connection speed from around 5000 to over 7000. - router stats below

      System Up Time 02:06:40
      Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
      WAN PPPoA 960 1084 0 1451 5284 00:02:50
      LAN 10M/100M 14167 13016 0 1164 306 02:06:38
      WLAN 11M/54M 167 234 0 5 1 02:06:29


      ADSL Link Downstream Upstream
      Connection Speed 7616 kbps 416 kbps
      Line Attenuation 15.5 db 28.0 db
      Noise Margin 7.6 db 14.0 db

      The problem is I now get regular disconnections - Please can anyone point me in the right direction for a solution - thanks


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    3. #2
      Isitme's Avatar
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      Re: Faster Connection but now unstable

      Looking at the connection speed and your attenuation, I would say you are showing the 15.5 bug for attenuation. Reboot your router until it shows correctly. I would guess it will be in the 50s.

      When you disconnected the extra wires in your boxes, did you insulate the ends of the loose wires or tuck them well away from the 'live' wires? You are absolutely sure you disconnected the correct wires? It is difficult to see how what you have done is causing disconnections, it should be the opposite if anything. If all else fails, try replacing the wires you have moved and see if it returns to a stable connection.

      You will have the old white router so it may be a good idea to post your full detailed stats.

      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.





    4. #3
      nexus.sixx's Avatar
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      Re: Faster Connection but now unstable

      Hi

      detailed stats below - the connection has now been up for 1 hour 20mins

      usr/sbin/adslctl: ADSL driver and PHY status
      Status: Showtime Channel: INTR, Upstream rate = 416 Kbps, Downstream rate = 7616 Kbps
      Link Power State: L0
      Mode: G.DMT
      Channel: Interleave
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 7.0 13.0
      Attn(dB): 43.0 28.0
      Pwr(dBm): 19.8 0.6
      Max(Kbps): 8160 1120
      Rate (Kbps): 7616 416
      G.dmt framing
      K: 239(0) 14
      R: 16 16
      S: 1 16
      D: 64 8
      ADSL2 framing
      MSGc: 1 1
      B: 239 14
      M: 1 16
      T: 1 1
      R: 16 16
      S: 1.0666 17.0666
      L: 1920 120
      D: 64 8
      Counters
      SF: 273649 273647
      SFErr: 68 0
      RS: 18608158 1162999
      RSCorr: 56461 60
      RSUnCorr: 1053 0

      HEC: 65 0
      OCD: 0 0
      LCD: 0 0
      Total Cells: 83558941 0
      Data Cells: 1443608 0
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 125 0
      SES: 56 0
      UAS: 1033 0
      Total time = 5 hours 8 min 1 sec
      SF = 996729
      CRC = 6712
      LOS = 58
      LOF = 0
      ES = 125
      Latest 1 day time = 5 hours 8 min 1 sec
      SF = 996729
      CRC = 6712
      LOS = 58
      LOF = 0
      ES = 125
      Latest 15 minutes time = 8 min 1 sec
      SF = 28347
      CRC = 8
      LOS = 0
      LOF = 0
      ES = 4
      Previous 15 minutes time = 15 min 0 sec
      SF = 52931
      CRC = 8
      LOS = 0
      LOF = 0
      ES = 4
      Previous 1 day time = 0 sec
      SF = 0
      CRC = 0
      LOS = 0
      LOF = 0
      ES = 0
      15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
      SF = 52989
      CRC = 3
      LOS = 3
      LOF = 0
      ES = 4
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF = 52930
      CRC = 18
      LOS = 3
      LOF = 0
      ES = 12
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF = 52931
      CRC = 22
      LOS = 0
      LOF = 0
      ES = 12

    5. #4
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      Re: Faster Connection but now unstable

      ^^^ Looking at your noise margin it looks like you are now getting the maximum speed that your line in its present condition can support. As the noise margin drops with increased noise then it is possible that the connection may drop.

      The best solution is to use Mognuts utility to set the target noise margin a little higher - 133 units (8.33 db) rather than the default 6.9 db is often recommended. This will slightly reduce your speed, just as if Sky applied a cap to your line), but you keep control.

      Remember that when the router is rebooted this will need setting again.

      HTH - Ian

    6. #5
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      Re: Faster Connection but now unstable

      you could also do a set of stats from the "test" socket, to see if your wiring is still holding you back

    7. #6
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      Re: Faster Connection but now unstable

      Hi Folks

      Thanks for the help - I have used the mognuts utility and set the noise margin to 9.
      The connection must have dropped during the night but has now been up for over 16 hours. These are my lates detailed stats.

      Do they show anything ??

      /usr/sbin/adslctl: ADSL driver and PHY status
      Status: Showtime Channel: INTR, Upstream rate = 416 Kbps, Downstream rate = 6880 Kbps
      Link Power State: L0
      Mode: G.DMT
      Channel: Interleave
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 9.4 13.0
      Attn(dB): 43.0 28.0
      Pwr(dBm): 19.8 0.4
      Max(Kbps): 7456 1152
      Rate (Kbps): 6880 416
      G.dmt framing
      K: 216(0) 14
      R: 16 16
      S: 1 16
      D: 64 8
      ADSL2 framing
      MSGc: 1 1
      B: 239 14
      M: 1 16
      T: 1 1
      R: 16 16
      S: 1.0666 17.0666
      L: 1920 120
      D: 64 8
      Counters
      SF: 3462943 3462941
      SFErr: 276 0
      RS: 235480146 14717499
      RSCorr: 857593 726
      RSUnCorr: 4443 0

      HEC: 254 0
      OCD: 6 0
      LCD: 0 0
      Total Cells: 955247868 0
      Data Cells: 1258565 0
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 572 0
      SES: 147 0
      UAS: 1236 0
      Total time = 1 days 5 hours 10 min 44 sec
      SF = 6068342
      CRC = 10164
      LOS = 106
      LOF = 0
      ES = 572
      Latest 1 day time = 5 hours 10 min 44 sec
      SF = 1096719
      CRC = 21
      LOS = 11
      LOF = 0
      ES = 20
      Latest 15 minutes time = 10 min 44 sec
      SF = 37875
      CRC = 2
      LOS = 0
      LOF = 0
      ES = 1
      Previous 15 minutes time = 15 min 0 sec
      SF = 52989
      CRC = 0
      LOS = 0
      LOF = 0
      ES = 0
      Previous 1 day time = 24 hours 0 sec
      SF = 4971623
      CRC = 10143
      LOS = 95
      LOF = 0
      ES = 552
      15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
      SF = 52931
      CRC = 0
      LOS = 1
      LOF = 0
      ES = 1
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF = 52930
      CRC = 3
      LOS = 0
      LOF = 0
      ES = 2
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF = 52930
      CRC = 3
      LOS = 1
      LOF = 0
      ES = 2

      thanks

    8. #7
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      Re: Faster Connection but now unstable

      According to your stats you have been up for a little over 29 hrs and your error rate has reduced considerably. I think most of the errors you are showing now have been carried forward from the previous stats. It does look as if you have cracked it. Just to confirm, I would recommend switching your router off for a couple of minutes, then switch on again. Have a look at the errors and see if they have cleared. If they have not, reset your router by pushing a biro in the hole in the back for about 10 seconds. Re-set your noise margin, then take the stats. You should show none or very few errors.
      Last edited by Isitme; 03-03-08 at 09:20 PM. Reason: typos

      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
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      Re: Faster Connection but now unstable

      Have a look at the errors and see if they have cleared
      Which of the router stats gives the number of errors ?

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      Re: Faster Connection but now unstable

      Total time = 1 days 5 hours 10 min 44 sec
      SF = 6068342
      CRC = 10164
      LOS = 106
      LOF = 0
      ES = 572
      taken from your above post, CRC/LOS/ES

      see 3rd link in my sig for an explanation of these

    11. #10
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      Re: Faster Connection but now unstable

      Cheers for the help folks.
      Connection has now been up for over 40 hours with no disconnections.
      Noise margin currently sat at 9db
      Havent done another reboot just in case - if it aint broke ........................

     

     
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