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Java0515's avatar
Java0515
New Contributor III
7 years ago

Frequent Internet Dropping

For about 2 months now I have been having connection issues with our internet (wired connection and wi-fi), and in the last couple weeks it would just drop at least 3-5 days in a week, at least 1-2 t...
Rob_H_'s avatar
Rob_H_
Contributor II

Try logging into the web interface of the CM600 by pointing a web browser to 192.168.100.1.  The default user name should be "admin" and password is "password".  There you can check your downstream signal power levels, SNRs, correctable codewords and more importantly uncorrectable codewords and upstream signal power levels, etc.  You can also view the "Event Log" for events (i.e. T3 timeouts) which seemed to correspond with the time of your outages.

The link below might help you to interpret the quality of your modem connection with Cox based on what you see through the modem's web interface.  Should you find that things aren't right, you might want to contact Cox and ask for Tier 2 Internet Support.  It's also a good idea to verify with the tech that you are ultimately connected with that they are, in fact, in Tier 2.  Good Luck.

pickmymodem.com/.../

Java0515's avatar
Java0515
New Contributor III
7 years ago

Im going to try this out! Will update once done.

  • Java0515's avatar
    Java0515
    New Contributor III
    7 years ago

    This is what the modem logs says:

    Cable Connection
     
    Apply               Cancel     
    Frequency start Value
    This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
    Starting Frequency
     
    Startup Procedure
    Procedure Status Comment
    Acquire Downstream Channel 795000000 Hz Locked
    Connectivity State OK Operational
    Boot State OK Operational
    Security Enable BPI+
    IP Provisioning Mode Honor MDD IPv4 only
     
    <tabindex=-1>Downstream Bonded Channels
    Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
    1 Locked QAM256 3 795000000 Hz 2.2 dBmV 32.2 dB 0 0
    2 Locked QAM256 1 783000000 Hz 3.3 dBmV 33.0 dB 2254 49
    3 Locked QAM256 2 789000000 Hz 2.9 dBmV 32.7 dB 0 0
    4 Locked QAM256 22 909000000 Hz 1.1 dBmV 31.7 dB 96 0
    5 Locked QAM256 4 801000000 Hz 2.0 dBmV 32.0 dB 0 0
    6 Locked QAM256 5 807000000 Hz 2.0 dBmV 32.1 dB 0 0
    7 Locked QAM256 6 813000000 Hz 2.2 dBmV 32.3 dB 0 0
    8 Locked QAM256 7 819000000 Hz 2.2 dBmV 32.3 dB 0 0
    9 Locked QAM256 8 825000000 Hz 2.0 dBmV 32.3 dB 516 382
    10 Locked QAM256 17 879000000 Hz 0.5 dBmV 32.0 dB 0 0
    11 Locked QAM256 18 885000000 Hz 0.6 dBmV 32.0 dB 0 0
    12 Locked QAM256 19 891000000 Hz 0.4 dBmV 31.8 dB 9 0
    13 Locked QAM256 20 897000000 Hz 0.3 dBmV 31.7 dB 31 0
    14 Locked QAM256 21 903000000 Hz 1.0 dBmV 32.1 dB 17 0
    15 Locked QAM256 23 915000000 Hz 1.3 dBmV 31.7 dB 36 0
    16 Locked QAM256 24 921000000 Hz 1.0 dBmV 31.2 dB 256 0
    17 Locked QAM256 33 345000000 Hz 11.0 dBmV 39.0 dB 0 0
    18 Locked QAM256 34 351000000 Hz 10.8 dBmV 39.0 dB 0 0
    19 Locked QAM256 35 357000000 Hz 10.8 dBmV 38.9 dB 0 0
    20 Locked QAM256 36 363000000 Hz 10.5 dBmV 38.9 dB 0 0
    21 Locked QAM256 37 369000000 Hz 10.4 dBmV 38.6 dB 0 0
    22 Locked QAM256 38 375000000 Hz 10.4 dBmV 38.6 dB 0 0
    23 Locked QAM256 39 381000000 Hz 10.3 dBmV 38.6 dB 0 0
    24 Locked QAM256 40 387000000 Hz 10.1 dBmV 38.2 dB 0 0
     
    <tabindex=-1>Upstream Bonded Channels
    Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
    1 Locked ATDMA 1 2560 Ksym/sec 20492000 Hz 42.8 dBmV
    2 Locked ATDMA 2 5120 Ksym/sec 25392000 Hz 44.3 dBmV
    3 Locked ATDMA 3 5120 Ksym/sec 31892000 Hz 45.8 dBmV
    4 Locked ATDMA 4 5120 Ksym/sec 38392000 Hz 47.3 dBmV
    5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
    6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
    7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
    8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
     
    Current System Time: Mon Aug 06 16:57:40 2018 
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    And Here's the Event Log:
    Event Log
           Clear Log                Refresh        
     
    Time Priority Description
    2018-08-06, 07:56:11 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-08-06, 07:55:23 Notice (6) TLV-11 - unrecognized OID;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-08-04, 08:04:47 Critical (3) Resetting the cable modem due to docsDevResetNow
    2018-08-02, 14:52:58 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-07-22, 09:24:20 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-07-17, 22:30:41 Critical (3) Resetting the cable modem due to docsDevResetNow
    2018-07-17, 21:07:42 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-07-17, 21:05:51 Critical (3) Resetting the cable modem due to docsDevResetNow
    2018-07-16, 05:13:13 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-07-16, 05:11:28 Critical (3) Resetting the cable modem due to docsDevResetNow
    2018-07-11, 18:08:27 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-07-02, 07:45:54 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-06-30, 18:01:27 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.1;CM-VER=3.0;
    2018-03-28, 02:21:58 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:21:50 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:21:49 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:20:50 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:19:52 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:18:54 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:17:56 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:17:23 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:16:04 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:15:06 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:14:08 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:13:10 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:12:54 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:12:54 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:12:51 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:12:50 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:10:50 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:10:46 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:10:44 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:10:38 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    2018-03-28, 02:09:40 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
    Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
    Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv4
    Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=2c:30:33:94:d3:98;CMTS-MAC=f8:b7:e2:05:a8:f0;CM-QOS=1.0;CM-VER=3.0;
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    • Java0515's avatar
      Java0515
      New Contributor III
      7 years ago

      This is the the modem status after disconnecting it from 2 splitters and connected it directly to the main coaxial cable.

      Cable Connection
       
      Apply               Cancel     
      Frequency start Value
      This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
      Starting Frequency
       
      Startup Procedure
      Procedure Status Comment
      Acquire Downstream Channel 795000000 Hz Locked
      Connectivity State OK Operational
      Boot State OK Operational
      Security Enable BPI+
      IP Provisioning Mode Honor MDD IPv4 only
       
      <tabindex=-1>Downstream Bonded Channels
      Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
      1 Locked QAM256 3 795000000 Hz -5.4 dBmV 34.6 dB 0 0
      2 Locked QAM256 1 783000000 Hz -4.6 dBmV 35.0 dB 0 0
      3 Locked QAM256 2 789000000 Hz -5.0 dBmV 34.8 dB 0 0
      4 Locked QAM256 22 909000000 Hz -5.8 dBmV 34.7 dB 0 0
      5 Locked QAM256 4 801000000 Hz -5.4 dBmV 34.5 dB 0 0
      6 Locked QAM256 5 807000000 Hz -5.5 dBmV 34.7 dB 0 0
      7 Locked QAM256 6 813000000 Hz -5.5 dBmV 34.8 dB 0 0
      8 Locked QAM256 7 819000000 Hz -5.5 dBmV 34.9 dB 0 0
      9 Locked QAM256 8 825000000 Hz -5.5 dBmV 35.0 dB 0 0
      10 Locked QAM256 17 879000000 Hz -6.8 dBmV 34.2 dB 0 0
      11 Locked QAM256 18 885000000 Hz -6.6 dBmV 34.6 dB 0 0
      12 Locked QAM256 19 891000000 Hz -6.6 dBmV 34.5 dB 0 0
      13 Locked QAM256 20 897000000 Hz -6.5 dBmV 34.5 dB 0 0
      14 Locked QAM256 21 903000000 Hz -5.9 dBmV 34.8 dB 0 0
      15 Locked QAM256 23 915000000 Hz -5.4 dBmV 34.8 dB 0 0
      16 Locked QAM256 24 921000000 Hz -5.4 dBmV 34.5 dB 0 0
      17 Locked QAM256 33 345000000 Hz 1.6 dBmV 39.4 dB 0 0
      18 Locked QAM256 34 351000000 Hz 1.5 dBmV 39.5 dB 0 0
      19 Locked QAM256 35 357000000 Hz 1.5 dBmV 39.4 dB 0 0
      20 Locked QAM256 36 363000000 Hz 1.4 dBmV 39.4 dB 0 0
      21 Locked QAM256 37 369000000 Hz 1.3 dBmV 39.4 dB 0 0
      22 Locked QAM256 38 375000000 Hz 1.2 dBmV 39.4 dB 0 0
      23 Locked QAM256 39 381000000 Hz 1.3 dBmV 39.4 dB 0 0
      24 Locked QAM256 40 387000000 Hz 1.2 dBmV 39.4 dB 0 0
       
      <tabindex=-1>Upstream Bonded Channels
      Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
      1 Locked ATDMA 1 2560 Ksym/sec 20492000 Hz 37.3 dBmV
      2 Locked ATDMA 2 5120 Ksym/sec 25392000 Hz 38.8 dBmV
      3 Locked ATDMA 3 5120 Ksym/sec 31892000 Hz 40.3 dBmV
      4 Locked ATDMA 4 5120 Ksym/sec 38392000 Hz 41.8 dBmV
      5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
      6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
      7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
      8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
       
      Current System Time: Mon Aug 06 17:34:46 2018 
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      • Rob_H_'s avatar
        Rob_H_
        Contributor II
        7 years ago

        At first glance, I see improvements in the SNR for some downstream channels and lower pwr levels for other downstream channels which puts them all in a better operating range for a DOCSIS 3.0 modem.  All the best.