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    Constantly disconnecting

    This is a discussion on Constantly disconnecting within the Sky Router forums, part of the Sky Broadband help category; That's excellent, thanks Brian. Seems so obvious when you put it that way So my next jobs are to reconnect ...

    1. #41
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      Re: Constantly disconnecting

      That's excellent, thanks Brian. Seems so obvious when you put it that way

      So my next jobs are to reconnect the orange ringer wire to 3 and to purchase the extension faceplate and get that connected as well.

      In the meantime, I'll keep an eye on those errors ... I apparently got 4 disconnects in the previous 24 hours, despite the number of errors going down (I'm assuming that the disconnects may be something to do with it being in "retrain" mode?).

      Uptime 161528.54 160964.43
      Wan up 156390.29 155836.71
      adslctl: ADSL driver and PHY status
      Status: ShowtimeRetrain Reason: 1
      Channel: INTR, Upstream rate = 416 Kbps, Downstream rate = 3968 Kbps
      Link Power State: L0
      Mode: G.DMT
      Channel: Interleave
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Also, I'm guessing that actually getting disconnected would cause errors in itself? So until I get a full 24 hour period without disconnects, I'm not going to get a true error reading.

      And in the process of trying to post this, disconnect number 5 kicked in

      Edit: Just checked those diagnostics again ... something isn't right here :

      Latest 1 day time = 21 hours 5 min 0 sec
      SF = 4458095
      CRC = 21517
      LOS = 101
      LOF = 27
      ES = 2100
      That's not good, I'd warrant ...
      Last edited by Stumpy; 25-05-08 at 11:28 AM. Reason: added more stuff


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    3. #42
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      Re: Constantly disconnecting

      Morning Stimpy.
      Glad it's all clear now, and sorry the reply was a bit "left right left right sgt major ish".
      There is one small point Iv'e not addressed, so I will put that right now.
      With your wiring as it is, and while you are going round re-connecting the ring wire, just check that with the test socket of your master socket exposed, that there is no dial tone at any other sockets you may have. This is important for correct operation of the faceplate filter.

      With the test socket exposed, there should only be a dial tone at the test socket.

    4. #43
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      Re: Constantly disconnecting

      Well I don't know what is going on, but the router is disconnecting worse than ever now ... several times in the last 15 minutes, and seems to have been disconnecting most of the day.

      The number of errors on the line seem to go up substantially, as expected, when I experience loss of signal, but the times where I haven't been disconnected over a 15 minute period, there are very few, if any, errors.

      The router just seems to freeze, then the internet light goes out, flickers orange, connects again (apparently), then disconnects again straight away and reconnects ... at which point I can then re-access the internet.

      My stats:

      ppp0 Link encap:Point-Point Protocol
      inet addr:90.201.183.98 P-t-P:195.189.159.55 Mask:255.255.255.255
      UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
      RX packets:1236 errors:0 dropped:0 overruns:0 frame:0
      TX packets:1490 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:3
      RX bytes:382686 (373.7 KiB) TX bytes:761719 (743.8 KiB)

      Uptime 273890.51 272950.41
      Wan up 273667.61 272734.69
      adslctl: ADSL driver and PHY status
      Status: ShowtimeRetrain Reason: 8000
      Channel: INTR, Upstream rate = 416 Kbps, Downstream rate = 3968 Kbps
      Link Power State: L0
      Mode: G.DMT
      Channel: Interleave
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 11.1 13.0
      Attn(dB): 56.0 31.5
      Pwr(dBm): 19.6 2.8
      Max(Kbps): 4576 1024
      Rate (Kbps): 3968 416
      G.dmt framing
      K: 125(0) 14
      R: 16 16
      S: 1 16
      D: 32 2
      ADSL2 framing
      MSGc: 1 1
      B: 59 14
      M: 4 16
      T: 1 1
      R: 16 16
      S: 4.2666 17.0666
      L: 480 120
      D: 8 2
      Counters
      SF: 14808 14807
      SFErr: 2 0
      RS: 1006974 62428
      RSCorr: 3295 0
      RSUnCorr: 2 0

      HEC: 2 0
      OCD: 0 0
      LCD: 0 0
      Total Cells: 2356179 0
      Data Cells: 9057 0
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 3634 0
      SES: 585 0
      UAS: 2135 0
      AS: 252

      INP: 1.06 1.06
      PER: 1.86 1.86
      delay: 8.53 8.53
      OR: 30.00 30.00

      Bitswap: 0 0

      Total time = 1 days 4 hours 4 min 49 sec
      SF = 15867265
      CRC = 50779
      LOS = 366
      LOF = 141
      ES = 3634
      Latest 1 day time = 4 hours 4 min 49 sec
      SF = 852133
      CRC = 8179
      LOS = 138
      LOF = 31
      ES = 155
      Latest 15 minutes time = 4 min 49 sec
      SF = 14808
      CRC = 2
      LOS = 0
      LOF = 0
      ES = 2
      Previous 15 minutes time = 15 min 0 sec
      SF = 48261
      CRC = 6223
      LOS = 134
      LOF = 12
      ES = 84
      Previous 1 day time = 24 hours 0 sec
      SF = 4891211
      CRC = 16226
      LOS = 111
      LOF = 65
      ES = 828
      15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
      SF = 52923
      CRC = 3
      LOS = 0
      LOF = 0
      ES = 2
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF = 52982
      CRC = 2
      LOS = 0
      LOF = 0
      ES = 2
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF = 49441
      CRC = 1240
      LOS = 3
      LOF = 10
      ES = 33
      Showtime Drop Reason: 8000
      Last Retrain Reason: 8000

    5. #44
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      Re: Constantly disconnecting

      Where are you connected to now? If you have connected your ADSL(A&B) side to your extension and are connecting to the router through another filter, this will cause problems. I don't like disagreeing with Brian, but when he said the A & B connections on the face plate were unfiltered, this is not correct. The connections have already been filtered to remove the low frequency, so putting another filter on a connection to them will filter out even more out and will cause real problems.

      If you have connected in this way, there is two things you can try,1) If you have a dial up modem cable handy, use that to connect the router direct to the socket. 2) Remove the ADSL faceplate, put the standard one back on and connect the wires to your extension back on to terminals 2 & 5. Connect the router through a filter to the faceplate. Check your errors.

      TomD


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    6. #45
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      Re: Constantly disconnecting

      @ Isitme.
      You are wrong, the A and B connections of the faceplate filter are directly connected to the incoming line.
      It is 2 and 5 which are filtered.
      If you were correct, then the idea of connecting directly to the line with an old modem cable would not work.
      Last edited by Brian69; 26-05-08 at 10:32 PM.

    7. #46
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      Re: Constantly disconnecting

      Quote from Plusnet Usertools
      If you follow the route to the ADSL modem you will see that you have passed through 2 Filter / Splitters. This will cause you severe problems because at the first Filter / Splitter at the master socket you are passing through the Low Frequency part. Remember that the ADSL part of the system is at a much higher frequency than the phone system.

      What will happen here is that the high frequencies of the ADSL signal will be severely attenuated by at least 30dB with a good filter and the signal reaching your modem will be very weak -- in most cases too weak to work at all -- although, if you are close to the telephone exchange you may find it works but you suffer from dropouts.
      It appears the Plusnet techs are wrong as well

      You will find the full article here-
      Tutorials - ADSL > Wiring and Filters


      TomD


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    8. #47
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      Re: Constantly disconnecting

      Read it again

    9. #48
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      Re: Constantly disconnecting

      Surely, if connecting the extension to A&B caused that extension to be filtered, then it would be double-filtered when I added the ADSLNation filtered extension faceplate on too? And I can't see that they would be able to justify them in that case?

      Strangely, we had an "almost" disconnect earlier (whilst Warcrafting) .... I was in the process of setting up my very long cable to connect the router directly to the master socket again ... I'd plugged the master socket side in, and was about to remove the router/extension cable to swap this longer one in, when the connection stabilised and we haven't had any problems since ... although admittedly only been a few hours.

      I'm kinda assuming this is just a coincidence because I can't see why plugged in a cable to the adsl socket of the master faceplate, without a connection at the other end, would make a difference ... but hey, I'm willing to believe anything at this point!

    10. #49
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      Re: Constantly disconnecting

      Much of the confusion is caused by your set-up, but never mind.
      (1) the output on A and B is not filtered (thats why it's marked A and B )
      (2) so long as you have connected the XTF 68/85 to this output you will have no problems because the router output of that is also unfilterd, so your router is connected directly across the incoming line as it should be.
      Everthing else must be connected to 2,3,5 of the faceplate filter, or to the phone sockets of the faceplate filter or the XTF 68/85 filter.

      Do make sure that you connect the wires from A and B of the faceplate filter, to the line in terminals of the XTF 68/85 (they are the screw terminals)
      Last edited by Brian69; 27-05-08 at 12:52 AM.

    11. #50
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      Re: Constantly disconnecting

      Hi folks,
      I just wanted to add my new "problem" to the list. I re-sync. about 2 to 4 times a day. This started, I think, exactly when the new firmware was automatically installed on my router. Prior to this my line was rock solid with no LOF at all - ever. I had a period about a week ago when my line went fine again for about 4 days but it's started again for the last 3 or 4 days. These are most of my stats:

      Uptime 59345.84 59157.52
      Wan up 41262.43 41128.88
      adslctl: ADSL driver and PHY status
      Status: ShowtimeRetrain Reason: 1
      Channel: FAST, Upstream rate = 764 Kbps, Downstream rate = 16382 Kbps
      Link Power State: L0
      Mode: ADSL2+
      Channel: Fast
      Trellis: U:ON /D:ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 7.8 16.0
      Attn(dB): 25.0 14.8
      Pwr(dBm): 16.0 12.8
      Max(Kbps): 21076 864
      Rate (Kbps): 16382 764
      G.dmt framing
      K: 37(0) 24
      R: 4 16
      S: 1 8
      D: 128 8
      ADSL2 framing
      MSGc: 93 68
      B: 36 23
      M: 1 8
      T: 9 1
      R: 4 16
      S: 0.0720 7.7037
      L: 4552 216
      D: 384 8
      Counters
      SF: 1128821 1065739
      SFErr: 50 1
      RS: 1005780208 813086
      RSCorr: 23818 2
      RSUnCorr: 8230 0

      HEC: 39 0
      OCD: 5 0
      LCD: 0 0
      Total Cells: 700043724 36351129
      Data Cells: 1446038 174209
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 111 1
      SES: 2 0
      UAS: 63 28
      AS: 18119

      INP: 1.34 2.37
      PER: 16.05 17.81
      delay: 6.91 15.40
      OR: 49.34 33.23

      Bitswap: 2708 399

      Total time = 16 hours 29 min 5 sec
      SF = 3688800
      CRC = 1200
      LOS = 2
      LOF = 18
      ES = 111
      Latest 1 day time = 16 hours 29 min 5 sec
      SF = 3688800
      CRC = 1200
      LOS = 2
      LOF = 18
      ES = 111

      I've tried disconnecting all of the phone side on my ADSLNation faceplate so that I'm effectively just running CAT5 from the test socket to the modem but the stats don't change.

      I'm worried that if SKY perform line management on the 3,000 lines (as has been talked about) they might mess up my line by giving me a cap or something? It does not effect my day to day internet use and I get great speeds so as long as it gets no worse I'm not too worried otherwise.
      Graham Cutting


     

     
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