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USMA56795's avatar
USMA56795
New Contributor II
3 years ago
Solved

Internet disconnects for 10-15 seconds several times an hour.

I'm using an Arris SB8200.  For the past week or so, the Internet cuts out for 10-15 seconds several times an hour.  I've run a recurring ping and it shows it dropping on the first hop from my router...
cable modem
connection issues
internet
  • WiderMouthOpen's avatar
    WiderMouthOpen
    3 years ago

    I would schedule a technician. It might actually take a couple technicians to track down the problem. If it's related to the upstream OFDM channel, that is a very new problem so most Cox employees don't know about it yet. I suggest emailing Cox cox.help@cox.com with your account info and a link to this thread.

WiderMouthOpen's avatar
WiderMouthOpen
Esteemed Contributor II
3 years ago

Can you post your signal levels from 192.168.100.1? Also, do you see anything in the logs like T3/T4 time-out errors?

  • USMA56795's avatar
    USMA56795
    New Contributor II
    3 years ago

    I can't login to my cable modem.  I can factory reset it, but when I login with the default username and password it brings me to a "change password" page.  When I change the password, it returns an error that says "Device failed to update password."

    My guess--and it's just a guess--is that Cox flashes the firmware via the coax when I first plugged it in, and did so in a way that prevents subsequent password changes.  But without that, there's no way for me to login to the admin console.

    Edit: That's interesting.  Having multiple numeric characters apparently doesn't work.  I figured out a combination of characters and one numeric character that does.  Let me look through the logs...

    • WiderMouthOpen's avatar
      WiderMouthOpen
      Esteemed Contributor II
      3 years ago

      Don't post the logs without removing the modem MAC address from it.

      • USMA56795's avatar
        USMA56795
        New Contributor II
        3 years ago

        Here are my logs:

        03/04/2023 12:08 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:03 2436694061 5 "Dynamic Range Window violation"
        03/04/2023 12:03 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:03 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:03 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:03 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:03 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:03 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:02 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 2436694061 5 "Dynamic Range Window violation"
        03/04/2023 12:01 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 2436694061 5 "Dynamic Range Window violation"
        03/04/2023 12:01 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 2436694061 5 "Dynamic Range Window violation"
        03/04/2023 12:01 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 12:01 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 84000500 3 "SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000200 3 "No Ranging Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000800 3 "16 consecutive T3 timeouts while trying to range on upstream channel 8;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000600 3 "Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:43 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:39 2436694061 5 "Dynamic Range Window violation"
        03/04/2023 11:39 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:39 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:39 2436694061 5 "Dynamic Range Window violation"
        03/04/2023 11:39 82001100 5 "RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:39 82000400 3 "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:38 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:38 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:38 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:38 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:38 82001200 5 "RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"
        03/04/2023 11:35 82000500 3 "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[redacted];CMTS-MAC=b0:8b:d0:6d:d3:21;CM-QOS=1.1;CM-VER=3.1;"

    • Lovemylab's avatar
      Lovemylab
      Contributor III
      3 years ago

      I'm using a Motorola MB8600 now, and used to use an Arris (SB6183 as I recall) and have not had any challenges with getting to the admin functions on either one. I've read that if one connects to port 8080 a spectrum analyzer is available, but that does not work for me.

      • USMA56795's avatar
        USMA56795
        New Contributor II
        3 years ago

        My Arris SB8200 is on firmware version AB01.02.053.05_051921_193.0A.NSH

        Is that the most recent?

  • USMA56795's avatar
    USMA56795
    New Contributor II
    3 years ago

    Downstream QAM256 are between 8.1dBmV and 15.8dBmV with SNR/MER at 40.7 to 41.4 dB.
    Upstream SC-QAM are at 36.0 dBmV.