Forum Discussion

filmnoir's avatar
filmnoir
Tuning in
14 days ago

Speeds dropping on 1GB to 276mb

Having an issue on speed. We have a 1GB connection, on a HUB5 and after about an hour speeds drop to 276mb. 

Running it in modem modeand connecte via ethernet. Reboots of the modem get it back to 976mb. Then it drops back. 

BQM is showing fairly steady. Upstream and downstream look ok. Any ideas?

Getting some warning mismatches:

[Mod - personal details such as MAC /IP addresses removed]

 

 

  • filmnoir's avatar
    filmnoir
    Tuning in
    14 days ago
    Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
    1 331000000 2.7 40 QAM 256 25
    2 139000000 2.2 38 QAM 256 1
    3 147000000 2.2 38 QAM 256 2
    4 155000000 2.3 38 QAM 256 3
    5 163000000 2.4 38 QAM 256 4
    6 171000000 2.3 38 QAM 256 5
    7 179000000 2.5 39 QAM 256 6
    8 187000000 2.4 39 QAM 256 7
    9 195000000 2.4 39 QAM 256 8
    10 203000000 2.3 39 QAM 256 9
    11 211000000 2.6 39 QAM 256 10
    12 219000000 2.6 39 QAM 256 11
    13 227000000 2.4 39 QAM 256 12
    14 235000000 2.3 39 QAM 256 13
    15 243000000 2.3 39 QAM 256 14
    16 251000000 2.1 39 QAM 256 15
    17 259000000 2.1 39 QAM 256 16
    18 267000000 2.2 39 QAM 256 17
    19 275000000 2.5 39 QAM 256 18
    20 283000000 2.8 40 QAM 256 19
    21 291000000 3.6 40 QAM 256 20
    22 299000000 4.4 40 QAM 256 21
    23 307000000 4.8 40 QAM 256 22
    24 315000000 4.1 40 QAM 256 23
    25 323000000 3.3 40 QAM 256 24
    26 339000000 2.8 40 QAM 256 26
    27 347000000 3.1 40 QAM 256 27
    28 355000000 3.5 40 QAM 256 28
    29 363000000 3.8 40 QAM 256 29
    30 371000000 3.9 40 QAM 256 30
    31 379000000 3.9 40 QAM 256 31
    32 387000000 3.8 40 QAM 256 32
     
    3.0 Downstream channels
     
    Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
    1 Locked 40 46 0
    2 Locked 38 894 21
    3 Locked 38 1805 92
    4 Locked 38 513 12
    5 Locked 38 297 13
    6 Locked 38 1444 11
    7 Locked 39 1250 11
    8 Locked 39 550 986
    9 Locked 39 81 11
    10 Locked 39 83 12
    11 Locked 39 86 6
    12 Locked 39 83 0
    13 Locked 39 73 0
    14 Locked 39 72 0
    15 Locked 39 66 0
    16 Locked 39 50 0
    17 Locked 39 58 0
    18 Locked 39 51 0
    19 Locked 39 48 0
    20 Locked 40 52 0
    21 Locked 40 63 0
    22 Locked 40 55 0
    23 Locked 40 54 0
    24 Locked 40 60 0
    25 Locked 40 59 0
    26 Locked 40 43 0
    27 Locked 40 48 0
    28 Locked 40 61 0
    29 Locked 40 53 0
    30 Locked 40 47 0
    31 Locked 40 37 0
    32 Locked 40 40 0
     
    3.1 Downstream channels
     
    Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
    159 94 4K 1840 QAM 4096 1108
     
    3.1 Downstream channels
     
    Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
    159 Locked 42 3.2 2560295229 5

     

  • filmnoir's avatar
    filmnoir
    Tuning in
    14 days ago
    3.0 Upstream channels
     
    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
    0 49600000 49.8 5120 QAM 64 1
    1 43100000 49.8 5120 QAM 64 2
    2 36600000 49.5 5120 QAM 64 3
    3 30100000 49.5 5120 QAM 64 4
    4 23600000 49.5 5120 QAM 64 5
     
    3.0 Upstream channels
     
    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
    0 ATDMA 0 0 0 0
    1 ATDMA 0 0 0 0
    2 ATDMA 0 0 0 0
    3 ATDMA 0 0 0 0
    4 ATDMA 0 0 0 0
     
    3.1 Upstream channels
     
    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    6 10 42.7 2K QAM 256
     
    3.1 Upstream channels
     
    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    6 OFDMA 200 74000000 0 0

     

  • filmnoir's avatar
    filmnoir
    Tuning in
    13 days ago

    Just tried a full reset. Speeds up to 481mb ethernet. 

    Still a few warnings on log

    MOD EDIT: Personal information removed.

  • Adduxi's avatar
    Adduxi
    Very Insightful Person
    13 days ago

    You need the Hub in Router mode and to run a wired speed test at SamKnows Realspeed and post the result.  VM will want the Hub in Router mode anyway to diagnose. 

     

    • legacy1's avatar
      legacy1
      Alessandro Volta
      13 days ago

      When I first gave VM the idea for speed test FROM the hub it was meant so that the speed test would run over the 10. IP to work in modem mode but VM messed that idea up.

      In any case speed test is not really a valid means that you will have 1Gb everywhere like me at   bridgemode.bounceme.net if you was to download something from me at best would be 19Mb but the internet is shared plus routing so having 1Gb does not mean you will get 1Gb everywhere at any time.      

      • filmnoir's avatar
        filmnoir
        Tuning in
        13 days ago

        In all respect, I am not sure what you are trying to suggest or say. 

        "but the internet is shared plus routing so having 1Gb does not mean you will get 1Gb everywhere at any time." 

        If you inferring I should pay for a 1GB Speed OFCOM and Vigin Media Guranteed speeds is 50% (I know poor right) of the contracted speed. 

        https://www.virginmedia.com/legal/speed-policy

        When the speed on my service drops to around 270mb they are breaking their contract. 

    • Adduxi's avatar
      Adduxi
      Very Insightful Person
      13 days ago

      The speed test needs to be run from SamKnows as requested. The VM test client for this test is embedded in the Hub but only works in Router mode.  

      • filmnoir's avatar
        filmnoir
        Tuning in
        13 days ago

        When running in router mode and connected via ethernet, same issues happen. Samknows starts of at 1GB then speed drops after a few hours down to 276mb.

  • Bultark's avatar
    Bultark
    Tuning in
    13 days ago

    Mine for the last two weeks has been all over the place. Normally high (about 800-900Mb) and then at some point during the day it'll drop to under 100Mb, and causes the wifi on my router (I have Virgin router in modem mode) all to fail and report no internet. 
    I reboot my Virgin router and everything is OK again until next time it happens which could be the next day or later in the week. 

    • filmnoir's avatar
      filmnoir
      Tuning in
      13 days ago

      This is the problem I am having.....

      Drops to around 270mb and log suggests signal degredation issues over time:

      warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;

      Reboot then stops this......however this reboot is needed every four to eight hours. Unacceptable.

       

      • Gareth_L's avatar
        Gareth_L
        Forum Team
        9 days ago

        Hello filmnoir.

        Thank you very much for joining our community.
        Can I just apologize for the speed issues you're facing.
        We can run a few tests from here and check on your equipment.
        Sadly, it’s not showing anything wrong, So I’ll need to send you a private message to gain account access and run further tests.
        If you can check the envelope top right of your screen, that would be great. 
        Regards     
        Gareth_L