Forum Discussion

preston46's avatar
preston46
On our wavelength
2 days ago

Intermittent Signal in Area

I have been getting the  message : 

Intermittent signal in your area

We’re looking into it. Check back here after 20 hours, and if there’s still an issue we’ll help you book an engineer.

this has been going on for over a week now, its not affecting the speed of the connection and I had the same problem some time ago. At that time it was discovered that there was a lot of noise on the line. I assume that's why my upstream modulation has changed from QAM64 to QAM32.  tried CS but had the usual excuse that we are are looking into it.  Would a factory reset do any good? I rebooted the hub 5  6 days ago. checked all internal cables and they are all secure.

5 Replies

  • jbrennand's avatar
    jbrennand
    Very Insightful Person

    see this...

    _________

    Post up your Hub/network connection details in the format below and someone will check to see if there is a problem there.  In your browser’s URL type in 192.168.0.1  if in router mode or 192.168.100.1 if in modem mode.     No need to log in - just click on the “Router Status” icon/text at bottom-middle (Hub3/4/5) or top/right (SH’s) - of the Login page.

         Then… Navigate to these “data pages” and just copy/paste the normal  “Formatted Text” (not images) 3 FULL sets of data onto here – 2 tables in the Downstream tab, the 2 in the Upstream tab, &  the Network Logs pages.  Don't worry too much about the formatting it can be easily read & DON’T include personal data or MAC addresses - blank them out - if you copy/paste the data, the board software will do this for you (you may need to click the "submit" button again). If character limits are “exceeded” - just do two posts

    Also, If you haven’t already, set up a free, secure and “offlsite”  - “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts.  It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph”.  Click the lower link (Share Live Graph) then, click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see.  On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OK
     https://www.thinkbroadband.com/broadband/monitoring/quality

    • preston46's avatar
      preston46
      On our wavelength

      3.0 Downstream channels

      Channel    Frequency (Hz)    Power (dBmV)    SNR (dB)    Modulation    Channel ID
      1    306000000    7.4    41    QAM 256    22
      2    146000000    5.3    39    QAM 256    2
      3    154000000    5.4    39    QAM 256    3
      4    162000000    5.5    39    QAM 256    4
      5    170000000    5.4    39    QAM 256    5
      6    178000000    5.5    40    QAM 256    6
      7    186000000    5.6    40    QAM 256    7
      8    194000000    5.8    39    QAM 256    8
      9    202000000    6    40    QAM 256    9
      10    210000000    6.5    39    QAM 256    10
      11    218000000    6.7    40    QAM 256    11
      12    226000000    6.6    40    QAM 256    12
      13    234000000    6.6    40    QAM 256    13
      14    242000000    6.6    40    QAM 256    14
      15    250000000    6.6    40    QAM 256    15
      16    258000000    6.9    40    QAM 256    16
      17    266000000    7    40    QAM 256    17
      18    274000000    7.2    40    QAM 256    18
      19    282000000    7.3    40    QAM 256    19
      20    290000000    7.3    40    QAM 256    20
      21    298000000    7.4    40    QAM 256    21
      22    314000000    7.2    41    QAM 256    23
      23    322000000    7.1    41    QAM 256    24
      24    330000000    7.1    41    QAM 256    25
      25    338000000    7.1    41    QAM 256    26
      26    346000000    7.1    41    QAM 256    27
      27    354000000    7.2    41    QAM 256    28
      28    362000000    7.3    41    QAM 256    29
      29    370000000    7.5    41    QAM 256    30
      30    378000000    7.7    41    QAM 256    31
      31    386000000    7.7    41    QAM 256    32
      3.0 Downstream channels

      Channel    Locked Status    RxMER (dB)    Pre RS Errors    Post RS Errors
      1    Locked    41    0    0
      2    Locked    39    0    0
      3    Locked    39    0    0
      4    Locked    39    8    0
      5    Locked    39    3    0
      6    Locked    40    0    0
      7    Locked    40    0    0
      8    Locked    39    0    0
      9    Locked    40    0    0
      10    Locked    39    0    0
      11    Locked    40    0    0
      12    Locked    40    0    0
      13    Locked    40    0    0
      14    Locked    40    0    0
      15    Locked    40    0    0
      16    Locked    40    0    0
      17    Locked    40    1    0
      18    Locked    40    0    0
      19    Locked    40    0    0
      20    Locked    40    0    0
      21    Locked    40    0    0
      22    Locked    41    0    0
      23    Locked    41    0    0
      24    Locked    41    0    0
      25    Locked    41    1    0
      26    Locked    41    0    0
      27    Locked    41    3    0
      28    Locked    41    0    0
      29    Locked    41    0    0
      30    Locked    41    0    0
      31    Locked    41    2    0
      3.1 Downstream channels

      Channel    Channel Width (MHz)    FFT Type    Number of Active Subcarriers    Modulation (Active Profile)    First Active Subcarrier (Hz)
      33    92    4K    1800    QAM 4096    1128
      3.1 Downstream channels

      Channel ID    Locked Status    RxMER Data (dB)    PLC Power (dBmV)    Corrected errors (Active Profile)    Uncorrectable errors (Active Profile)
      33    Locked    42    7.8    2051136683    206

      • preston46's avatar
        preston46
        On our wavelength

        3.0 Upstream channels

        Channel    Frequency (Hz)    Power (dBmV)    Symbol Rate (ksps)    Modulation    Channel ID
        0    49600000    45.3    5120    QAM 32    1
        1    43100000    45.5    5120    QAM 32    2
        2    36600000    45.5    5120    QAM 32    3
        3    30100000    45.3    5120    QAM 32    4
        4    23600000    45    5120    QAM 32    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    1    0
        3.1 Upstream channels

        Channel    Channel Width (MHz)    Power (dBmV)    FFT Type    Modulation
        6    10.4    40.5    2K    QAM 256
        3.1 Upstream channels

        Channel    Channel Type    Number of Active Subcarriers    First Active Subcarrier (Hz)    T3 Timeouts    T4 Timeouts
        6    OFDMA    208    74000000    18    0

    • preston46's avatar
      preston46
      On our wavelength

      3.0 Upstream channels

      Channel    Frequency (Hz)    Power (dBmV)    Symbol Rate (ksps)    Modulation    Channel ID
      0    49600000    45.3    5120    QAM 32    1
      1    43100000    45.5    5120    QAM 32    2
      2    36600000    45.5    5120    QAM 32    3
      3    30100000    45.3    5120    QAM 32    4
      4    23600000    45    5120    QAM 32    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    1    0
      3.1 Upstream channels

      Channel    Channel Width (MHz)    Power (dBmV)    FFT Type    Modulation
      6    10.4    40.5    2K    QAM 256
      3.1 Upstream channels

      Channel    Channel Type    Number of Active Subcarriers    First Active Subcarrier (Hz)    T3 Timeouts    T4 Timeouts
      6    OFDMA    208    74000000    18    0

    • preston46's avatar
      preston46
      On our wavelength

      Network Log

      Time    Priority    Description
      17-07-2025 19:12:47    notice    GUI Login Status - Login Success from LAN interface
      17-07-2025 18:59:56    notice    GUI Login Status - Login Success from LAN interface
      17-07-2025 12:33:19    notice    GUI Login Status - Login Success from LAN interface
      17-07-2025 08:29:32    notice    GUI Login Status - Login Success from LAN interface
      17-07-2025 08:18:20    notice    GUI Login Status - Login Success from LAN interface
      16-07-2025 13:52:43    notice    GUI Login Status - Login Success from LAN interface
      16-07-2025 11:48:21    notice    GUI Login Status - Login Success from LAN interface
      16-07-2025 07:18:51    notice    GUI Login Status - Login Success from LAN interface
      16-07-2025 06:59:05    notice    GUI Login Status - Login Success from LAN interface
      14-07-2025 03:41:54    error    DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      12-07-2025 21:02:14    critical    16 consecutive T3 timeouts while trying to range on upstream channel 8;:;CMTS-MAC=:ec;CM-QOS=1.1;CM-VER=3.1;
      12-07-2025 21:02:14    critical    Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=;CMTS;CM-QOS=1.1;CM-VER=3.1;
      12-07-2025 21:01:06    critical    Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 15:41:52    error    DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=9;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:45    notice    REGISTRATION COMPLETE - Waiting for Operational status
      10-07-2025 12:26:40    warning    RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:33    notice    DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:32    notice    TLV-11 - unrecognized OID;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:25    warning    DHCP WARNING - Non-critical field invalid in response ;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:22    notice    Honoring MDD; IP provisioning mode = IPv4
      10-07-2025 12:26:20    critical    No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:01    critical    SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      10-07-2025 12:26:00    critical    Cable Modem Reboot because of - HW or Power-On Reset
      20-06-2025 17:21:05    critical    Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:21:05    critical    16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:58    critical    Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:47    critical    No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:25    critical    No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:24    critical    No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=;CMTS-MAC=0;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:14    critical    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:14    critical    No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:13    critical    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      20-06-2025 17:19:10    critical    No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      17-06-2025 21:55:27    critical    No Ranging Response received - T3 time-out;CM-;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      17-06-2025 21:55:10    critical    Cable Modem Reboot because of - HW or Power-On Reset
      17-06-2025 21:55:10    critical    SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      03-06-2025 16:24:36    critical    No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      03-06-2025 16:24:30    critical    SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      03-06-2025 16:24:24    critical    No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      03-06-2025 16:24:18    critical    SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
      03-06-2025 16:24:18    critical    Cable Modem Reboot because of - HW or Power-On Reset