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    Why has my connection dropped 20 mbps overnight?

    This is a discussion on Why has my connection dropped 20 mbps overnight? within the Sky Broadband (Fibre) Help forums, part of the Sky Broadband help and support category; As per the title really, used to sync at 65 down 15 up. Now getting 43 down and 19 up. ...

    1. #1
      S2KIP's Avatar
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      Why has my connection dropped 20 mbps overnight?

      As per the title really, used to sync at 65 down 15 up. Now getting 43 down and 19 up.

      Code:
      Controller VDSL 0/0/0 is UP
      
      Daemon Status:         Up 
      
      
                  XTU-R (DS)        XTU-C (US)
      Chip Vendor ID:        'BDCM'             'IFTN'
      Chip Vendor Specific:   0x0000             0xB204
      Chip Vendor Country:    0xB500             0xB500
      Modem Vendor ID:    'CSCO'             '    '
      Modem Vendor Specific:  0x4602             0x0000
      Modem Vendor Country:   0xB500             0x0000
      Serial Number Near:    FOC164833FF 1921/K9  15.1(4)M  
      Serial Number Far:     5502325255
      Modem Version Near:    15.1(4)M
      Modem Version Far:     0xb204
      
      
      Modem Status:         TC Sync (Showtime!) 
      DSL Config Mode:     AUTO 
      Trained Mode:         G.993.2 (VDSL2) Profile 17a
      TC Mode:         PTM 
      Selftest Result:     0x00 
      DELT configuration:     disabled 
      DELT state:         not running 
      Trellis:             ON              ON
      Line Attenuation:      0.0 dB          0.0 dB
      Signal Attenuation:      0.0 dB          0.0 dB
      Noise Margin:          6.0 dB          6.0 dB
      Attainable Rate:    43840 kbits/s         19151 kbits/s
      Actual Power:         14.1 dBm          6.9 dBm
      Per Band Status:           D1     D2     D3     U0     U1     U2     U3
      Line Attenuation(dB):   13.6    31.1    47.8    3.4    23.2    37.8    N/A    
      Signal Attenuation(dB): 13.6    31.1    47.8    3.4    23.1    37.7    N/A    
      Noise Margin(dB):       6.0    6.0    6.0    6.1    6.0    6.0    N/A    
      Total FECS:        0             2266
      Total ES:           87             82
      Total SES:        0             0
      Total LOSS:        0             0
      Total UAS:        0             0
      Total LPRS:        0             0
      Total LOFS:        0             0
      Total LOLS:        0             0
      Bit swap:        23094             155
      
      
      Full inits:        1
      Failed full inits:    0
      Short inits:        0
      Failed short inits:    0
      
      
      Firmware    Source        File Name (version)
      --------    ------        -------------------
      VDSL        embedded       VDSL_LINUX_DEV_01212008 (1)
      
      
      Modem FW  Version:    110506_1916-4.02L.03.A2pv6C032b.d23i
      Modem PHY Version:    A2pv6C032b.d23i
      
      
      
      
                 DS Channel1      DS Channel0    US Channel1      US Channel0
      Speed (kbps):              0           43842             0           19126
      Previous Speed:              0               0             0               0
      Reed-Solomon EC:          0               0             0            2266
      CRC Errors:              0             225             0               0
      Header Errors:              0             655             0               0
      Interleave (ms):       0.00            0.00          0.00            0.00
      Actual INP:           0.00            0.00          0.00            0.00
                
      Training Log :    Stopped
      Training Log Filename :    flash:vdsllog.bin
      I've got my HG612 stats from before somewhere.

      I've tried logging a fault with Sky but they don't seem to want to help, even though they admit they can see my sync speed has dropped.


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    3. #2
      seawright's Avatar
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      Re: Why has my connection dropped 20 mbps overnight?

      You may have to revert to using the router supplied by Sky before tech support will be willing/able to help with this problem.

    4. #3
      S2KIP's Avatar
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      Re: Why has my connection dropped 20 mbps overnight?

      Well I was on web chat and they're sending out an Openreach Engineer on Tuesday.

    5. #4
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      Re: Why has my connection dropped 20 mbps overnight?

      What speed did you get with the Sky Hub? It could be your Cisco is not fully compatible with the exchange equipment.

      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.





    6. #5
      S2KIP's Avatar
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      Re: Why has my connection dropped 20 mbps overnight?

      Quote Originally Posted by Isitme View Post
      What speed did you get with the Sky Hub? It could be your Cisco is not fully compatible with the exchange equipment.
      When it was first installed the Sky hub got around 55 mbps. I then put on a HG612 with an RT-N66U and I was getting 65/15 for a couple of months. My neighbour had his FTTC installed and roughly the same time my speed dropped down to 45/12. It's been like that for about two months. Since putting on the Cisco router my upload has actually increased. I expect the downstream to stabalise back at 45 within a few days.

      - - - Updated - - -

      Actually here are my stats from before with my HG612 and the RT-N66U.

      This is what it was:

      Code:
      # xdslcmd info --pbParams
      xdslcmd: ADSL driver and PHY status
      Status: Showtime
      Retrain Reason: 0
      Max:    Upstream rate = 19749 Kbps, Downstream rate = 70320 Kbps
      Path:   0, Upstream rate = 19626 Kbps, Downstream rate = 59548 Kbps
      
      
      Discovery Phase (Initial) Band Plan
      US: (0,95) (880,1195) (1984,2771)
      DS: (32,859) (1216,1959) (2792,4083)
      Medley Phase (Final) Band Plan
      US: (0,95) (880,1195) (1984,2771)
      DS: (32,859) (1216,1959) (2792,4083)
             VDSL Port Details       Upstream        Downstream
      Attainable Net Data Rate:      19749 kbps         70320 kbps
      Actual Aggregate Tx Power:        6.9 dBm          13.9 dBm
      ============================================================================
        VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
        Line Attenuation(dB):  2.0     25.7    37.5     N/A    13.9    31.9    47.4
      
      
      Signal Attenuation(dB):  2.0     25.5    37.4     N/A    13.9    31.9    47.4
      
      
              SNR Margin(dB):  6.3     6.0     6.0      N/A    6.3     6.5     6.3
      
      
               TX Power(dBm): -3.6    -17.4    6.5      N/A    11.5    7.2     7.2

      Code:
      # xdslcmd info --show
      xdslcmd: ADSL driver and PHY status
      Status: Showtime
      Retrain Reason: 0
      Max:    Upstream rate = 19729 Kbps, Downstream rate = 70324 Kbps
      Path:   0, Upstream rate = 19626 Kbps, Downstream rate = 59548 Kbps
      
      
      Link Power State:       L0
      Mode:                   VDSL2 Annex B
      VDSL2 Profile:          Profile 17a
      TPS-TC:                 PTM Mode
      Trellis:                U:ON /D:ON
      Line Status:            No Defect
      Training Status:        Showtime
                      Down            Up
      SNR (dB):        6.4             6.0
      Attn(dB):        0.0             0.0
      Pwr(dBm):        13.9            6.9
                              VDSL2 framing
                              Path 0
      B:              63              238
      M:              1               1
      T:              64              64
      R:              16              16
      S:              0.0342          0.3877
      L:              18718           5262
      D:              943             1
      I:              80              255
      N:              80              255
                              Counters
                              Path 0
      OHF:            180946730               2084838
      OHFErr:         5               138
      RS:             382033570               683309
      RSCorr:         545416          2285
      RSUnCorr:       17              0
      
      
                              Path 0
      HEC:            5               0
      OCD:            0               0
      LCD:            0               0
      Total Cells:    4057487008              0
      Data Cells:     1494761425              0
      Drop Cells:     0
      Bit Errors:     0               0
      
      
      ES:             1               128
      SES:            0               0
      UAS:            22              22
      AS:             298137
      
      
                              Path 0
      INP:            3.00            0.00
      PER:            1.64            6.20
      delay:          8.00            0.00
      OR:             116.98          24.50
      
      
      Bitswap:        44318           626
      
      
      #
      And after it dropped:


      Code:
      # xdslcmd info --pbParams
      xdslcmd: ADSL driver and PHY status
      Status: Showtime
      Retrain Reason:    0
      Last initialization procedure status:    0
      Max:    Upstream rate = 16877 Kbps, Downstream rate = 48128 Kbps
      Bearer:    0, Upstream rate = 16666 Kbps, Downstream rate = 47663 Kbps
      
      
      Discovery Phase (Initial) Band Plan
      US: (6,31) (882,1193) (1984,2770) 
      DS: (33,857) (1218,1959) (2795,4083) 
      Medley Phase (Final) Band Plan
      US: (6,31) (882,1193) (1984,2770) 
      DS: (41,857) (1218,1959) (2795,4083) 
                VDSL Port Details          Upstream          Downstream
      Attainable Net Data Rate:        16877 kbps            48128 kbps
      Actual Aggregate Tx Power:           6.9 dBm             14.1 dBm
      ====================================================================================
          VDSL Band Status        U0        U1        U2    U3        U4        D1        D2        D3
        Line Attenuation(dB):     2.2     26.0     38.4      N/A      N/A     14.1     32.5     48.3    
      Signal Attenuation(dB):     2.2     25.8     38.3      N/A      N/A     16.4     32.2     48.3    
              SNR Margin(dB):     5.8     6.0     6.3      N/A      N/A     6.2     6.2     6.3    
               TX Power(dBm):    -3.6    -17.6     6.5      N/A      N/A     11.7     7.4     7.2    
      #

      Code:
      # xdslcmd info --show
      xdslcmd: ADSL driver and PHY status
      Status: Showtime
      Retrain Reason:    0
      Last initialization procedure status:    0
      Max:    Upstream rate = 16427 Kbps, Downstream rate = 47892 Kbps
      Bearer:    0, Upstream rate = 16666 Kbps, Downstream rate = 47663 Kbps
      
      
      Link Power State:    L0
      Mode:            VDSL2 Annex B
      VDSL2 Profile:        Profile 17a
      TPS-TC:            PTM Mode(0x0)
      Trellis:        U:ON /D:ON
      Line Status:        No Defect
      Training Status:    Showtime
              Down        Up
      SNR (dB):     6.2         6.0
      Attn(dB):     19.4         0.0
      Pwr(dBm):     14.1         6.9
                  VDSL2 framing
                  Bearer 0
      MSGc:        18        16
      B:        239        238
      M:        1        1
      T:        64        3
      R:        14        16
      S:        0.1603        0.4565
      L:        12680        4469
      D:        1        1
      I:        254        255
      N:        254        255
                  Counters
                  Bearer 0
      OHF:        154404319        1537207
      OHFErr:        150        133
      RS:        1291917023        3560201
      RSCorr:        2403        5037
      RSUnCorr:    918        0
      
      
                  Bearer 0
      HEC:        790        0
      OCD:        35        0
      LCD:        35        0
      Total Cells:    2045912860        0
      Data Cells:    358695992        0
      Drop Cells:    0
      Bit Errors:    0        0
      
      
      ES:        82        116
      SES:        0        0
      UAS:        27        27
      AS:        397453
      
      
                  Bearer 0
      INP:        0.00        0.00
      INPRein:    0.00        0.00
      delay:        0        0
      PER:        2.57        7.56
      OR:        74.59        23.27
      AgR:        47737.93    16689.17
      
      
      Bitswap:    113415/114376        184242/190989
      I personally think that my profile has been banded.
      Last edited by S2KIP; 05-07-15 at 04:32 PM.

     

     

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