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    help speeds go,s up and down like yoyo

    This is a discussion on help speeds go,s up and down like yoyo within the Sky Router forums, part of the Sky Broadband help category; an any body look at this and tell me what wrong speed changes like wind here from 5 meg to ...

    1. #1
      petermk's Avatar
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      Exclamation help speeds go,s up and down like yoyo

      an any body look at this and tell me what wrong speed changes like wind here from 5 meg to 14 meg downloads and i have chk face plate and set up mtu also set up the rest with cablenut thanks
      usr/sbin/adslctl: ADSL driver and PHY status
      Status: Showtime Channel: FAST, Upstream rate = 764 Kbps, Downstream rate = 15323 Kbps
      Link Power State: L0
      Mode: ADSL2+
      Channel: Fast
      Trellis: ON
      Line Status: No Defect
      Training Status: Showtime
      Down Up
      SNR (dB): 8.8 12.5
      Attn(dB): 30.5 17.0
      Pwr(dBm): 0.2 12.4
      Max(Kbps): 16240 864
      Rate (Kbps): 15323 764
      G.dmt framing
      K: 239(0) 24
      R: 16 16
      S: 1 8
      D: 64 8
      ADSL2 framing
      MSGc: 59 68
      B: 238 23
      M: 1 8
      T: 2 1
      R: 16 16
      S: 0.4980 7.7037
      L: 4096 216
      D: 64 8
      Counters
      SF: 921937 921935
      SFErr: 280337 2
      RS: 119851880 7836447
      RSCorr: 16092622 8
      RSUnCorr: 397825 0

      HEC: 278705 1
      OCD: 1 0
      LCD: 0 0
      Total Cells: 538752623 26875627
      Data Cells: 5752368 1143574
      Drop Cells: 0
      Bit Errors: 0 0

      ES: 11156 2
      SES: 7379 0
      UAS: 14 16
      Total time = 4 hours 9 min 2 sec
      SF = 921937
      CRC = 280337
      LOS = 8
      LOF = 0
      ES = 11156
      Latest 1 day time = 4 hours 9 min 2 sec
      SF = 921937
      CRC = 280337
      LOS = 8
      LOF = 0
      ES = 11156
      Latest 15 minutes time = 9 min 2 sec
      SF = 33540
      CRC = 1693
      LOS = 1
      LOF = 0
      ES = 55
      Previous 15 minutes time = 15 min 0 sec
      SF = 55590
      CRC = 174
      LOS = 1
      LOF = 0
      ES = 32
      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 = 55652
      CRC = 6578
      LOS = 0
      LOF = 0
      ES = 244
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF = 55591
      CRC = 25366
      LOS = 1
      LOF = 0
      ES = 898
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF = 55590
      CRC = 29714
      LOS = 0
      LOF = 0
      ES = 900


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    3. #2
      Koala5's Avatar
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      Re: help speeds go,s up and down like yoyo

      You have a massive amount of CRC errors, when you say you have checked master socket do you mean these stats were taken whilst plugged into the test socket?

    4. #3
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      Re: help speeds go,s up and down like yoyo

      I have copied text below from another thread because I cant be bothered to type it again but it may be of relavance to you:

      If your master socket is a NTE5 if you remove the 2 screws and pull the bottom half of the face plate off you should find a test socket behind the plate, by pulling the face plate off it should disconnect all hardwired extension cables, this is how BT test the line if you were to call them out, by plugging in the test socket it isolates a problem to there wiring ie the line or your wiring. You should plug the router via a filter into that test socket, if your noise margin goe's up and your problems go away then it is internal wiring causing the problem, which was the case with mine.
      If the master is an older non NTE5 the only way to do the test is to physically disconnect the extension cables inside the socket leaving just 2 wires connected pins 2 and 5 from the incoming BT line.
      If disconnecting the extensions improves things then go round all the extension sockets and disconnect all wires apart from pins 2 and 5 then reconnect at the master or put the face plate back on and try again.
      In my case it was the ring/bell wire pin 6 which was generating major noise, these extra connections are not required with modern phones so disconnecting the extra wires shouldn't stop the phone
      s ringing.

      --------------------------------------------------------------------------------

    5. #4
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      Re: help speeds go,s up and down like yoyo

      done face plate no wires ,so just plug filter in and modem and phone in so this report was done pluged to master socket yep as you said in your text its whilst plugged into the test socket
      Last edited by petermk; 01-06-07 at 12:34 PM. Reason: added

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      Re: help speeds go,s up and down like yoyo

      I cant see any obvious signs for the CRC's, As you say you have tried the Test Socket eliminating any extensions.
      Have you tried changing the microfilters. For 30db Attenuation and a imo Healthly SNR of 8db you have a pretty decent line on terms of
      speed aswell.

      Also, I wouldnt really trust Cablenut, Not on a ADSL Connection, Its great for Cable as you have a rock solid sync, But with ADSL the SNR and such float about so your speeds will and Cablenut doesnt really help.

    7. #6
      petermk's Avatar
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      Re: help speeds go,s up and down like yoyo

      yes have change fillters as well so am at a loss now what the problem is as well pc is not on wireless as well it cabel even tryed messing with mtu as well so sort out speed

    8. #7
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      Re: help speeds go,s up and down like yoyo

      If you have plugged into the test socket (not the master socket) and you still get plenty of CRC errors, then the problem lies with the ISP. I suggest a call to Sky support.
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      Re: help speeds go,s up and down like yoyo

      so just plug filter in and modem and phone in so this report was done pluged to master socket yep as you said in your text its whilst plugged into the test socket
      This is not too clear

      You have still not confirmed that you are plugged into the TEST socket, which is behind the Master socket.

    10. #9
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      Re: help speeds go,s up and down like yoyo

      yes its test one its pluged in to i removed face plate and pluged it in

    11. #10
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      Re: help speeds go,s up and down like yoyo

      looking at your stats you are on fast path. Maybe get sky to change you to interleaved. It will reduce your sync slightly but should reduce your errors so giving you a more consistent speed. Also you have a bit of margin to play with on your SNR so if you get switched to interleaved then you can reduce your snr again which will take you closer to your current sync speed

     

     

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