Forum Discussion

radiokid's avatar
radiokid
Tuning in
2 years ago

Intermittent drop outs, MS Teams, Twitch, Discord, VPN

Hi

My Virgin connection seems to be "glitching" for want of a better word. It doesn't disconnect fully and the speed is fine but certain applications experience drop outs, for a few seconds.

Microsoft Teams calls will drop periodically, sometimes just freezing sometimes disconnecting

Twitch streams display rotating wheel indicating a buffering issue, happens regardless of stream being watched

Discord will randomly disconnect from voice chats, again only for a second or two.

VPN will loose connection then reconnect within a few seconds.

Online gaming can also be affected, although not very clear when this happens. Speed of connection is fine and downloading files is also fine. Watching Netflix/Youtube doesnt seem to be affected although I imagine they buffer the stream ahead of it being watched.

Let me know what kind of stats, monitoring I need to supply for any assistance that can be given.

Tom.

buffer
disconnect

13 Replies

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  • legacy1's avatar
    legacy1
    Alessandro Volta
    2 years ago

    are you in router mode?

    Your BQM shows a problem 

  • legacy1's avatar
    legacy1
    Alessandro Volta
    2 years ago

    Could be a faulty Ethernet port try changing to another port on the hub if the hub allows it.

    What own router are you using? You may have to test with a PC to the hub in modem mode with another BQM to see if it drops.

    You could run in router mode to test BQM to the hub not that I like to suggest that the problem is not likely your kit.

    does the hub how T# timeouts?

  • radiokid's avatar
    radiokid
    Tuning in
    2 years ago

    Ok, but am I right in thinking that the regular packet loss as shown by the BQM graph is showing packet loss in my WAN connection and nothing to do with my LAN setup. Packet loss percentage seems to be around 5% mark at regular'ish intervals.

  • radiokid's avatar
    radiokid
    Tuning in
    2 years ago

    Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream

    Cable Modem Status
    Online
    DOCSIS 3.1
    Primary downstream channel
    Locked
    SC-QAM
    DOCSIS 3.0 channels
    32
    5
    DOCSIS 3.1 channels
    1
    1

    3.0 Downstream channels

    Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

    113875000010.840.4QAM2561
    333947500009.740.4QAM25633
    214675000010.840.4QAM2562
    416275000010.340.4QAM2564
    517075000010.140.4QAM2565
    315475000010.740.4QAM2563
    36418750000938.6QAM25636
    81947500001040.4QAM2568
    92027500009.840.9QAM2569
    374267500009.438.6QAM25637
    61787500001040.4QAM2566
    122267500009.840.4QAM25612
    132347500009.639QAM25613
    718675000010.140.9QAM2567
    404507500009.839QAM25640
    162587500009.738.6QAM25616
    172667500009.740.4QAM25617
    414587500009.840.4QAM25641
    102107500009.940.4QAM25610
    202907500008.739QAM25620
    212987500008.839QAM25621
    112187500009.740.4QAM25611
    444827500008.940.4QAM25644
    24322750000939QAM25624
    142427500009.740.4QAM25614
    45490750000939QAM25645
    152507500009.439QAM25615
    182747500009.339QAM25618
    19282750000938.6QAM25619
    223067500008.839QAM25622
    485147500008.539QAM25648
    233147500009.439QAM25623



     
  • radiokid's avatar
    radiokid
    Tuning in
    2 years ago

    3.0 Downstream channels

    Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors

    1Locked40.36628700
    33Locked40.36628700
    2Locked40.36628700
    4Locked40.36628700
    5Locked40.36628700
    3Locked40.36628700
    36Locked38.60537700
    8Locked40.36628700
    9Locked40.94620900
    37Locked38.60537700
    6Locked40.36628700
    12Locked40.36628700
    13Locked38.98326100
    7Locked40.94620900
    40Locked38.98326100
    16Locked38.60537700
    17Locked40.36628700
    41Locked40.36628700
    10Locked40.36628700
    20Locked38.98326100
    21Locked38.98326100
    11Locked40.36628700
    44Locked40.36628700
    24Locked38.98326100
    14Locked40.36628700
    45Locked38.98326100
    15Locked38.98326100
    18Locked38.98326100
    19Locked38.60537700
    22Locked38.98326100
    48Locked38.98326100
    23Locked38.98326100



    3.1 Downstream channels

    Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
    159964K1840QAM4096759


    3.1 Downstream channels

    Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
    159Locked427.436838683090
     
  • radiokid's avatar
    radiokid
    Tuning in
    2 years ago

    3.0 Upstream channels

    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

    13660000038.85120 KSym/secQAM643
    22360000038.35120 KSym/secQAM645
    33010000038.35120 KSym/secQAM644
    44310000038.85120 KSym/secQAM642
    54960000038.85120 KSym/secQAM641



    3.0 Upstream channels

    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

    1ATDMA0000
    2ATDMA0000
    3ATDMA0000
    4ATDMA0000
    5ATDMA0000



    3.1 Upstream channels

    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    610.033.22KQAM8


    3.1 Upstream channels

    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    6OFDMA20053.920

    General Configuration

    Network access
    true
    Maximum Number of CPEs
    1
    Baseline Privacy
    true
    DOCSIS Mode
    3.1
    Config file
    54k;fg87dsfd;kfoA,.iyewrk



    Primary Downstream Service Flow

    SFID
    5132
    Max Traffic Rate
    1200000450
    Max Traffic Burst
    42600
    Min Traffic Rate
    0



    Primary Upstream Service Flow

    SFID
    5131
    Max Traffic Rate
    110000274
    Max Traffic Burst
    42600
    Min Traffic Rate
    0
    Max Concatenated Burst
    42600
    Scheduling Type
    bestEffort

    Network Log

    Time Priority Description
    Fri 23/02/2024
    03:36:46    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Fri 23/02/2024
    02:11:36    		3No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    21:56:36    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    21:56:36    		5DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    19:26:34    		6US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    19:26:34    		5DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    18:10:37    		6DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    18:10:37    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    06:26:14    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Thu 22/02/2024
    06:26:14    		5DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Wed 21/02/2024
    18:55:57    		6US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 12.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Wed 21/02/2024
    18:38:58    		3No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Wed 21/02/2024
    17:26:05    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Wed 21/02/2024
    17:26:05    		5DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Wed 21/02/2024
    16:51:44    		3No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Tue 20/02/2024
    23:25:52    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Tue 20/02/2024
    23:25:52    		5DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Tue 20/02/2024
    15:55:37    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    Tue 20/02/2024
    15:55:37    		5DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
  • Client62's avatar
    Client62
    Alessandro Volta
    2 years ago

    The 3.0 DOCSIS Downstream power levels are very high to too high. 

    Has 6 dB or even a 10 dB attenuator been removed from the feed to the VM Hub ?

  • radiokid's avatar
    radiokid
    Tuning in
    2 years ago

    I cant see any evidence of one being there. Cable just goes straight from the wallbox to the Virgin router. Assume I can just get one myself and fit it?

    • Matthew_ML's avatar
      Matthew_ML
      Icon for Forum Team rankForum Team
      2 years ago

      Hey radiokid, thank you for reaching out and I am sorry to hear this.

      I have taken a look and everything is looking great on our side, how has the connection been over the weekend ?