Forum Discussion

NE30's avatar
NE30
Tuning in
4 hours ago

10AM Drop Out

SInce the start of October I have a regular drop out of connectivity around 10-12:00

Doesnt last long, just the router reboots and I need to conenct again, but why is it happening and what can be done to stop?

App doesnt show any outages/issues

7 Replies

  • 20-10-2025 11:31:57noticeREGISTRATION COMPLETE - Waiting for Operational status
    20-10-2025 11:31:48noticeDS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    20-10-2025 11:31:46warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    20-10-2025 11:31:43noticeHonoring MDD; IP provisioning mode = IPv4
    20-10-2025 11:31:39criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    20-10-2025 11:31:35criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    20-10-2025 11:31:35criticalCable Modem Reboot because of - unknown
    20-10-2025 00:11:33criticalNo Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    20-10-2025 00:11:28criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    20-10-2025 00:10:31criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    19-10-2025 11:15:59criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    19-10-2025 11:15:53criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    19-10-2025 11:15:53criticalCable Modem Reboot because of - unknown
    18-10-2025 11:06:15criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    18-10-2025 11:06:09criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    18-10-2025 11:06:05criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    18-10-2025 11:06:03criticalCable Modem Reboot because of - unknown
    17-10-2025 10:56:09criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    17-10-2025 10:56:04criticalCable Modem Reboot because of - unknown
    17-10-2025 10:56:04criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    16-10-2025 10:47:03criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    16-10-2025 10:46:57criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    16-10-2025 10:46:56criticalCable Modem Reboot because of - unknown
    15-10-2025 10:37:10criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    15-10-2025 10:37:02criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    15-10-2025 10:36:59criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    15-10-2025 10:36:57criticalCable Modem Reboot because of - unknown
    14-10-2025 10:27:41criticalNo Ranging Response received - T3 time-out;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    14-10-2025 10:27:37criticalCable Modem Reboot because of - HW or Power-On Reset
    14-10-2025 10:27:37criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
    13-10-2025 21:49:25criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    13-10-2025 21:49:17criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=cc:58:30:05:ff:76;CMTS-MAC=00:01:5c:82:6a:5c;CM-QOS=1.1;CM-VER=3.1;
    • NE30's avatar
      NE30
      Tuning in

      BQM pics posted, don't know if they are approved yet

  • 3.0 Upstream channels

    Channel    Frequency (Hz)    Power (dBmV)    Symbol Rate (ksps)    Modulation    Channel ID
    0    49600000    45.3    5120    QAM 64    1
    1    43100000    45.3    5120    QAM 64    2
    2    36600000    45    5120    QAM 64    3
    3    30100000    44.8    5120    QAM 64    4
    4    23600000    44.8    5120    QAM 64    5
    3.0 Upstream channels

    Channel    Channel Type    T1 Timeouts    T2 Timeouts    T3 Timeouts    T4 Timeouts
    0    ATDMA    0    0    1    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
    11    10.4    40.7    2K    QAM 256
    3.1 Upstream channels

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

  • 3.0 Downstream channels

    Channel    Frequency (Hz)    Power (dBmV)    SNR (dB)    Modulation    Channel ID
    1    139000000    2.1    38    QAM 256    1
    2    219000000    2.8    39    QAM 256    11
    3    227000000    2.4    39    QAM 256    12
    4    235000000    2.7    39    QAM 256    13
    5    243000000    3    39    QAM 256    14
    6    251000000    3.6    40    QAM 256    15
    7    259000000    3.6    40    QAM 256    16
    8    267000000    3.8    40    QAM 256    17
    9    275000000    4.2    40    QAM 256    18
    10    283000000    4.4    40    QAM 256    19
    11    291000000    4.4    40    QAM 256    20
    12    299000000    4.5    40    QAM 256    21
    13    307000000    4.3    40    QAM 256    22
    14    315000000    4.3    40    QAM 256    23
    15    323000000    4.1    40    QAM 256    24
    16    331000000    3.9    40    QAM 256    25
    17    339000000    3.8    40    QAM 256    26
    18    347000000    3.9    40    QAM 256    27
    19    355000000    3.7    40    QAM 256    28
    20    363000000    3.7    40    QAM 256    29
    21    371000000    3.5    40    QAM 256    30
    22    379000000    3.4    40    QAM 256    31
    23    387000000    2.9    40    QAM 256    32
    24    395000000    3    40    QAM 256    33
    25    403000000    3.2    40    QAM 256    34
    26    411000000    3.6    41    QAM 256    35
    27    419000000    3.8    41    QAM 256    36
    28    427000000    4    41    QAM 256    37
    29    435000000    3.8    41    QAM 256    38
    30    443000000    3.8    40    QAM 256    39
    31    451000000    4    41    QAM 256    40
    3.0 Downstream channels

    Channel    Locked Status    RxMER (dB)    Pre RS Errors    Post RS Errors
    1    Locked    38    0    0
    2    Locked    39    0    0
    3    Locked    39    0    0
    4    Locked    39    0    0
    5    Locked    39    0    0
    6    Locked    40    0    0
    7    Locked    40    0    0
    8    Locked    40    0    0
    9    Locked    40    0    0
    10    Locked    40    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    0    0
    18    Locked    40    0    0
    19    Locked    40    0    0
    20    Locked    40    0    0
    21    Locked    40    0    0
    22    Locked    40    0    0
    23    Locked    40    0    0
    24    Locked    40    0    0
    25    Locked    40    0    0
    26    Locked    41    0    0
    27    Locked    41    0    0
    28    Locked    41    0    0
    29    Locked    41    0    0
    30    Locked    40    0    0
    31    Locked    41    1    0
    3.1 Downstream channels

    Channel    Channel Width (MHz)    FFT Type    Number of Active Subcarriers    Modulation (Active Profile)    First Active Subcarrier (Hz)
    41    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)
    41    Locked    0    3.3    78758737    0

  • Adduxi's avatar
    Adduxi
    Very Insightful Person

    Power levels etc all look okay, but the T3 timeouts and reboots are not.  Have you checked for area faults?