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Jadz's avatar
Jadz
New Contributor
3 years ago

Dynamic Range Window violation

Hello,

I been having issues with my internet lately, I notice that my upload arrow will randomly start blinking then all of my devices will loose connection after a minute or so everything will back to normal. I ran a system log on my Motorola MB8600 modem and I get Dynamic Range window Violation and T3 timeouts. 

can anyone help me? I also called IT Support at COX but every single agent I speak to they have no clue what Im talking about.

here is the System Log -

   13:37:50
Tue Jun 1 2021
  Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:37:56
Tue Jun 1 2021
  Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:38:45
Tue Jun 1 2021
  Notice (6)   CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:39:47
Tue Jun 1 2021
  Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:40:31
Tue Jun 1 2021
  Notice (6)   CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:37
Tue Jun 1 2021
  Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:38
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:38
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    13:53:38
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:38
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    13:53:38
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:38
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    13:53:38
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:38
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    13:53:38
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    13:53:38
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    14:39:38
Tue Jun 1 2021
  Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:41:54
Tue Jun 1 2021
  Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:06
Tue Jun 1 2021
  Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:09
Tue Jun 1 2021
  Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:22
Tue Jun 1 2021
  Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:29
Tue Jun 1 2021
  Notice (6)   Honoring MDD; IP provisioning mode = IPv4
    14:42:32
Tue Jun 1 2021
  Warning (5)   DHCP WARNING - Non-critical field invalid in response ;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:32
Tue Jun 1 2021
  Notice (6)   TLV-11 - unrecognized OID;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:33
Tue Jun 1 2021
  Notice (6)   DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:39
Tue Jun 1 2021
  Warning (5)   REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:40
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:40
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    14:42:40
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:40
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation
    14:42:40
Tue Jun 1 2021
  Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=00:40:36:6a:08:18;CMTS-MAC=00:a5:bf:0f:38:ec;CM-QOS=1.1;CM-VER=3.1;
    14:42:40
Tue Jun 1 2021
  Warning (5)   Dynamic Range Window violation

2 Replies

  • Dave9's avatar
    Dave9
    Contributor III

    The T3 timeout is the real problem. That's why it's listed as Critical and the DRW violation is only listed as Warning. You also have some T4 timeouts which indicate an even bigger problem. Remove all unnecessary splitters and replace all interior cable with brand new RG6 cable. If that doesn't help you need to call for a service tech. There's nothing the phone or chat techs can do to fix the problem and most of them don't even know what those logs mean.

  • CrystalS's avatar
    CrystalS
    Former Moderator
    Hello @Jadz,

    I apologize that you have been dealing with this intermittent connection issue. The internet is SUPER important, especially in this day and age. Please don't be upset with our first-level technical support agents, they have very general knowledge and this seems like an in-depth speed issue. Great job coming to Forums looking for assistance. We have some customers up here that are very knowledgeable and will assist in resolving your issue. If you decide that you would like personal support. Please reach us on Twitter at @CoxHelp, visit us on Facebook, or email us at cox.help@cox.com. Provide us the name on the account with the complete service address with a link to this thread so we can get started. We would definitely be able to assist you with this.

    Crystal S.
    Cox Support Forum Moderator