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Jdrid's avatar
Jdrid
New Contributor

Random Connection Drops Constantly

I've been having issues with getting dropped connections that last from a few seconds to a minute every day multiple times a day.  I've been looking into the modem logs and have been having a large amount of T3 time outs.  Here's a snippet from today including signal strength data:

Fri May 26 00:50:12 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
Thu May 25 22:04:27 2017 Warning (5) Dynamic Range Window violation
Thu May 25 22:00:35 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
Thu May 25 19:43:36 2017 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
Thu May 25 19:42:53 2017 Notice (6) TLV-11 - unrecognized OID;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;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
Time Not Established Notice (6) WiFi Interface [wl1] set to Channel 149 (Side-Band Channel:N/A) - Reason:INIT
Time Not Established Notice (6) WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT
Thu May 25 19:41:55 2017 Critical (3) Resetting the cable modem due to docsDevResetNow
Thu May 25 19:15:47 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
Thu May 25 08:47:17 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
Thu May 25 04:11:53 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables
1 Locked QAM256 104 771000000 Hz -1.0 dBmV 40.9 dB 86 30
2 Locked QAM256 101 753000000 Hz -0.6 dBmV 41.3 dB 62 105
3 Locked QAM256 102 759000000 Hz -0.7 dBmV 40.8 dB 54 136
4 Locked QAM256 103 765000000 Hz -1.1 dBmV 41.3 dB 59 134
5 Locked QAM256 109 801000000 Hz -2.1 dBmV 40.2 dB 63 33
6 Locked QAM256 110 807000000 Hz -2.1 dBmV 40.3 dB 20 51
7 Locked QAM256 111 813000000 Hz -2.1 dBmV 40.2 dB 54 48
8 Locked QAM256 112 819000000 Hz -2.2 dBmV 40.3 dB 63 54

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 1 5120 Ksym/sec 38600000 Hz 36.5 dBmV
2 Locked ATDMA 2 5120 Ksym/sec 32200000 Hz 36.0 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 25800000 Hz 35.5 dBmV
4 Locked TDMA and ATDMA 4 2560 Ksym/sec 21000000 Hz 33.0 dBmV

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  • ColleenD's avatar
    ColleenD
    Moderator
    Jdrid,

    I was able to locate your account using the email address you used to register for forums. In reviewing your modem I see it is making a high number of power adjustments. If your modem's power cord connects to a surge protector or UPS please try connecting it directly to the electrical outlet at the wall at least temporarily to see if the connection improves.

  • Jdrid's avatar
    Jdrid
    New Contributor

    I swapped it directly to an outlet and it is still having the same issues.  I went into our attic as well and checked how the signal cable was getting split to the modem and it is as it should be, with the main incoming going to a splitter and from the 3.5dB side to the modem with no other splits.  

  • Allan's avatar
    Allan
    Moderator

    @jdrid,

    Is there a signal amp or booster connected to the cable line going to the modem?

    Allan - Cox Support Forums Moderator

  • Jdrid's avatar
    Jdrid
    New Contributor

    Not that I'm aware of, unless Cox or someone installed out outside before it even gets near my house.

  • Allan's avatar
    Allan
    Moderator

    @Jdrid

    Ok. We will need to have a tech come out and take a look. Please send us an email with your full address and day/time that you prefer for the visit to cox.help@cox.com so we can schedule this for you. 

    Thanks,

    Allan - Cox Support Forums Moderator.

  • Jdrid's avatar
    Jdrid
    New Contributor

    The tech came out and all he did was call some other guy at Cox and asked to look at if my modem was having errors.  The guy from Cox said I was having a lot of errors on the return signal, so the tech decided that my modem was bad.  He did not even check anything at all with the modem; he walked into the room, called a guy at Cox, told me my modem was broken and left.  The fact that without even physically touching or loading into the modem to check errors at all he just dictates that "my modem is bad"  is a little baffling to me.  And of course he told me about how I can buy a new modem from Cox.  Here's more errors from my modem:

    TimePriorityDescription
    Wed May 31 00:28:50 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:40:58 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:40:58 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:40:58 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:25:16 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:25:16 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:25:16 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:29:28 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:29:28 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:29:28 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:24:14 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:24:14 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:24:14 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:56:19 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:56:19 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:56:19 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:47:51 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:47:51 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:47:51 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:20:26 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:20:26 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 12:20:26 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:54:47 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:54:47 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:54:47 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:49:32 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:49:32 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:49:32 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:21:38 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:21:38 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 11:21:38 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 10:59:42 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 10:59:42 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 10:59:42 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 10:18:06 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 10:18:06 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 10:18:06 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 09:54:56 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 09:54:56 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 09:54:56 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 09:25:01 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 09:25:01 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 09:25:01 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:54:23 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:54:23 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:54:23 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:44:10 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:44:10 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:44:10 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:28:58 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:28:58 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 08:28:58 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 06:43:04 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 06:43:04 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 06:43:04 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 00:53:27 2017 Warning (5) Dynamic Range Window violation
    Tue May 30 00:53:26 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 00:53:24 2017 Warning (5) Dynamic Range Window violation
    Tue May 30 00:53:16 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 00:53:13 2017 Warning (5) Dynamic Range Window violation
    Tue May 30 00:39:20 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
  • cpljp's avatar
    cpljp
    Contributor

    Wow thats a lot of T3s. I doubt there is anything wrong with your modem. See if the techs on this forum can check your ICFR for your upstream channels and check your neighbor's upstream ICFR as well. Maybe a cable issue outside in the plant

  • DannyS's avatar
    DannyS
    Moderator

    Sorry if the tech was unable to identify any issues while onsite.  We would like to set up another call for you. 

    please reach us on Twitter at @CoxHelp, visit us on Facebook, or email by at cox.help@cox.com. Provide us the name on

    the account with the full service address with a link to this thread so we can get started.

  • Jdrid's avatar
    Jdrid
    New Contributor

    I have sent another email asking for service as requested.  I have attached logs from today as well in that email and here.  I have discovered that during a connection drop the upstream power shoots up much higher than normal, and then returns to a normal level after the disconnection has stopped.  The first paste is the disconnect, the second is how it normally is.  


    Upstream Bonded Channels
    Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
    1 Locked ATDMA 1 5120 Ksym/sec 38600000 Hz 48.5 dBmV
    2 Locked ATDMA 2 5120 Ksym/sec 32200000 Hz 51.0 dBmV
    3 Locked ATDMA 3 5120 Ksym/sec 25800000 Hz 51.0 dBmV
    4 Locked TDMA and ATDMA 4 2560 Ksym/sec 21000000 Hz 51.0 dBmV

    Upstream Bonded Channels
    Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
    1 Locked ATDMA 1 5120 Ksym/sec 38600000 Hz 38.0 dBmV
    2 Locked ATDMA 2 5120 Ksym/sec 32200000 Hz 38.2 dBmV
    3 Locked ATDMA 3 5120 Ksym/sec 25800000 Hz 36.0 dBmV
    4 Locked TDMA and ATDMA 4 2560 Ksym/sec 21000000 Hz 34.5 dBmV

    Wed May 31 20:20:17 2017 Warning (5) Dynamic Range Window violation
    Wed May 31 20:19:33 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Wed May 31 20:19:18 2017 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Wed May 31 20:19:17 2017 Warning (5) Dynamic Range Window violation
    Wed May 31 19:55:38 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:40:58 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:40:58 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:40:58 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:25:16 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:25:16 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 14:25:16 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:29:28 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:29:28 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:29:28 2017 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:24:14 2017 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;
    Tue May 30 13:24:14 2017 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=20:3d:66:13:af:f7;CMTS-MAC=24:e9:b3:1a:ca:78;CM-QOS=1.1;CM-VER=3.0;


  • Charles_W's avatar
    Charles_W
    New Contributor

    Were you able to get this issue fixed? I seem to have the same problem as you as of this morning and has continued all day.