Forum Discussion

Intermittent_I2's avatar
Intermittent_I2
New Contributor II
6 years ago

Dynamic range window violation

This happens over and over. The cable modem connection is good and power levels are within a good range, but I keep getting these T3 timeouts and I lose internet connection every few minutes. Does anyone know how to fix this without have to pay the Cox technician to come out?  I only have the one line in, no splitters and the modem works. 

2019-9-16, 04:02:11 Warning (5) Dynamic Range Window violation
2019-9-16, 04:02:11 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:59:c0:82:ae:68;CMTS-MAC=00:38:df:9b:21:5d;CM-QOS=1.1;CM-VER=3.0;
2019-9-16, 04:02:12 Warning (5) Dynamic Range Window violation
2019-9-16, 04:02:13 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:59:c0:82:ae:68;CMTS-MAC=00:38:df:9b:21:5d;CM-QOS=1.1;CM-VER=3.0;
2019-9-16, 04:02:14 Warning (5) Dynamic Range Window violation
2019-9-16, 04:02:15 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:59:c0:82:ae:68;CMTS-MAC=00:38:df:9b:21:5d;CM-QOS=1.1;CM-VER=3.0;
2019-9-16, 04:02:16 Warning (5) Dynamic Range Window violation
2019-9-16, 04:02:59 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:59:c0:82:ae:68;CMTS-MAC=00:38:df:9b:21:5d;CM-QOS=1.1;CM-VER=3.0;
2019-9-16, 04:03:00 Warning (5) Dynamic Range Window violation
2019-9-16, 04:03:59 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:59:c0:82:ae:68;CMTS-MAC=00:38:df:9b:21:5d;CM-QOS=1.1;CM-VER=3.0;
2019-9-16, 04:03:59 Warning (5) Dynamic Range Window violation
  • JonathanJ's avatar
    JonathanJ
    Former Moderator
    6 years ago
    @Intermittent Internet Connection


    If the source of the problem is in our equipment or outside your house, it is our responsibility and there is no charge for the service call. Have you checked the coax cable to make sure all ends are hand tight also check the conductors (copper pin on tip of coax cable) to make sure they're not bent? To avoid that swap the coax cable if you have one. If still seeing the time outs after please email us at cox.help@cox.com your full name and address so we can check the signal levels.


    Jonathan J
    Cox Moderator
    • Intermittent_I2's avatar
      Intermittent_I2
      New Contributor II
      6 years ago

      Thank you for your response. The coax comes into my house directly from your box outside my home so I do not know how to swap out the cable without pulling it out from the outside and I'd rather not open your box.

      • StephanieS's avatar
        StephanieS
        Moderator
        6 years ago
        @Intermittent Internet Connection

        On the inside of your home, where the coax cable comes out of the wall does the cable screw onto a fitting on the wall or does it pull out of an existing hole in the wall? If the cable line did screw onto a fitting than it would be easy to swap out. We definitely don't want you getting into the outside equipment. If the cable line pulls out of an existing hole in the wall it can't be swapped out. Please disconnect the coaxial cable from the back of the modem and take a look at the tip of that cable. It's important that the little piece of copper that comes out of the end of the cable is straight. Then go ahead and reconnect it making sure that it goes back on straight and tight. Once that's done please reach back out so I can recheck that signal.

        StephanieS
        Cox Forums Moderator