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    Repeated Disconnects

    This is a discussion on Repeated Disconnects within the Sky Broadband help forums, part of the Sky Broadband help and support category; Sorry if this has been posted before. I hate asking for help, but this is starting to get immensely frustrating. ...

    1. #1
      Jason's Avatar
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      Repeated Disconnects

      Sorry if this has been posted before. I hate asking for help, but this is starting to get immensely frustrating.

      Every 7 minutes my connection cuts out. The events tend to unfold like this on the Connection Status window on the router:

      7:00 - Nothing changes but things like messengers and browsers time out and disconnect
      7:30 - Everything has completely disconnected
      8:00 - "Connecting to Server Disconnect"

      Then it reconnects and it takes about a minute before I can really do anything, then the cycle continues to repeat itself.

      I'm not sure what information you may need to help me out with this problem, but if you let me know I'll do my best to get hold of it for you, I'm not really all that techologically skilled

      Thanks in advance if anyone can help me out.
      Last edited by Jason; 16-06-07 at 01:38 PM.


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    3. #2
      Saturday's Avatar
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      Re: Repeated Disconnects

      First thing to see is whether this is the UPnP "bug". Log into the router admin pages and untick UPnP followed by apply. If you're not sure how to log into your router see the first part of the first sticky in my signature at the bottom of this post.

      If that doesn't fix things then you'll need to post more details of your connection e.g. router stats, wireless or wired etc.

    4. #3
      Jason's Avatar
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      Re: Repeated Disconnects

      Sorry for the slow response time, it has been out for about a day now.
      Is this the information you needed?

      Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
      WAN PPPoA 152 124 0 588 171 00:00:41
      LAN 10M/100M 3680055 2672814 0 154 2980 51:30:10
      WLAN 11M/54M 74796 65902 0 212 98 51:30:00

      ADSL Link Downstream Upstream
      Connection Speed 7968 kbps 416 kbps
      Line Attenuation 31.0 db 21.5 db
      Noise Margin 9.2 db 14.0 db

      I unchecked UPnP and it still happened. Also, I am wired in to the router.

      Is there anything else that you need to know?

    5. #4
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      Re: Repeated Disconnects

      Detailed stats would be more useful, extract them using the proceedure below then post them here.

      Go to the utility web site: Sky Netgear DG834GT utility version 0.4 Click the “Get” detailed modem stats button and click “OK”.
      Enter the router login user name and password.
      At the next screen, click the back button on your browser.
      Click the “Download” netgear.cfg button.
      What you do next depends on your operating system. On Windows XP, click the “Save” button to save the file to your hard disk. (If you click “Open”, you may find that the file association is one that doesn’t handle carriage returns the same way as the router, hence the reason for saying “Save”.)
      Open the file in WordPad (not notepad).

    6. #5
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      Re: Repeated Disconnects

      /usr/sbin/adslctl: ADSL driver and PHY status
      Status: Showtime Channel: INTR, Upstream rate = 416 Kbps, Downstream rate = 7840 Kbps
      Link Power State: L0
      Mode: G.DMT
      Channel: Interleave
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 9.6 14.0
      Attn(dB): 31.0 22.5
      Pwr(dBm): 19.8 0.6
      Max(Kbps): 8448 1184
      Rate (Kbps): 7840 416
      G.dmt framing
      K: 246(0) 14
      R: 12 16
      S: 1 16
      D: 64 8
      ADSL2 framing
      MSGc: 1 1
      B: 250 14
      M: 1 16
      T: 1 1
      R: 12 16
      S: 1.0478 17.0666
      L: 2008 120
      D: 64 8
      Counters
      SF: 46637 46635
      SFErr: 4 0
      RS: 6342648 198198
      RSCorr: 397 0
      RSUnCorr: 19 0

      HEC: 3 0
      OCD: 0 0
      LCD: 0 0
      Total Cells: 14654814 0
      Data Cells: 292500 0
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 887 0
      SES: 177 0
      UAS: 651 0
      Total time = 1 days 4 hours 51 min 7 sec
      SF = 11135592
      CRC = 12796
      LOS = 392
      LOF = 0
      ES = 887
      Latest 1 day time = 4 hours 51 min 7 sec
      SF = 1006432
      CRC = 3285
      LOS = 62
      LOF = 0
      ES = 80
      Latest 15 minutes time = 6 min 7 sec
      SF = 21584
      CRC = 2
      LOS = 0
      LOF = 0
      ES = 2
      Previous 15 minutes time = 15 min 0 sec
      SF = 51047
      CRC = 480
      LOS = 4
      LOF = 0
      ES = 10
      Previous 1 day time = 24 hours 0 sec
      SF = 5074788
      CRC = 1739
      LOS = 45
      LOF = 0
      ES = 59
      15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
      SF = 49047
      CRC = 396
      LOS = 12
      LOF = 0
      ES = 3
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF = 49400
      CRC = 809
      LOS = 12
      LOF = 0
      ES = 14
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF = 47929
      CRC = 356
      LOS = 4
      LOF = 0
      ES = 6

      Is that what you mean?

    7. #6
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      Re: Repeated Disconnects

      You've got a conciderable amount of CRC errors on the line. Have you tried plugging the router into the test socket? which is behind the face plate of the BT master socket, if you have an NTE5.
      This is a classic sign of extension wiring issues.

    8. #7
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      Re: Repeated Disconnects

      I don't have vast experience interpreting router stats - others may be able to spot something more specific. However your stats show plenty of errors which could be due to erratic noise levels on your line. My suggestion would be to use the Mognuts utility to set your target noise margin to a significantly higher level than the 7 dB default value - say 15 dB. This will reduce your connection speed somewhat, but it may overcome your repeated disconnection problem, and make it easier to find the root cause of your problem.
      Useful Links
      Download RouterStats (useful utility for continuously recording noise margin)

    9. #8
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      Re: Repeated Disconnects

      best to try the test socket and post stats b4 changing noise margin m8
      Please take a moment and upgrade your bit torrent client to the latest version.
      Help traffic shaped users by enabling protocol encryption in Az or µT


     

     

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