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DeXLV702's avatar
DeXLV702
New Contributor

Getting T3 Timeouts...AGAIN.

Time Priority Description
 Wed Apr 12 17:37:24 2017    Warning (5)   Dynamic Range Window violation 
 Wed Apr 12 17:36:09 2017    Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:30:10 2017    Notice (6)   WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INTERFERENCE 
 Wed Apr 12 17:29:41 2017    Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:24:42 2017    Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:24:42 2017    Critical (3)   Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:24:42 2017    Critical (3)   16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:24:12 2017    Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:24:12 2017    Critical (3)   Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 17:24:12 2017    Critical (3)   16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 16:45:37 2017    Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
 Wed Apr 12 16:44:54 2017    Notice (6)   TLV-11 - unrecognized OID;CM-MAC=6c:b0:ce:5d:0a:28;CMTS-MAC=50:57:a8:89:27:c9;CM-QOS=1.1;CM-VER=3.0; 
Downstream Bonded Channels
Lock Status Modulation Channel ID Symbol rate Frequency Power SNR DOCSIS/EuroDOCSIS locked
Locked QAM256 121 5360 Ksym/sec 813000000 Hz 10.7 dBmV 39.8 dB DOCSIS
Locked QAM256 122 5360 Ksym/sec 819000000 Hz 10.6 dBmV 39.9 dB DOCSIS
Locked QAM256 123 5360 Ksym/sec 825000000 Hz 10.7 dBmV 39.9 dB DOCSIS
Locked QAM256 124 5360 Ksym/sec 831000000 Hz 10.1 dBmV 39.8 dB DOCSIS
Locked QAM256 129 5360 Ksym/sec 861000000 Hz 10.6 dBmV 39.9 dB DOCSIS
Locked QAM256 130 5360 Ksym/sec 867000000 Hz 10.5 dBmV 39.7 dB DOCSIS
Locked QAM256 131 5360 Ksym/sec 873000000 Hz 10.6 dBmV 39.5 dB DOCSIS
Locked QAM256 132 5360 Ksym/sec 879000000 Hz 10.5 dBmV 39.4 dB DOCSIS

Upstream Bonded Channels
Lock Status Modulation Channel ID Symbol rate Frequency Power
Locked ATDMA 2 5120 Ksym/sec 29800000 Hz 38.8 dBmV
Locked ATDMA 1 5120 Ksym/sec 36300000 Hz 38.8 dBmV
Locked ATDMA 3 5120 Ksym/sec 23300000 Hz 38.8 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV

This has been happening on and off for the past few days. A few months ago it was happening a lot more frequently and a technician came and removed a filter from the power line that he said someone had left there previously and was messing with the upstream signals. Mind you we only have internet, no phone or TV. It seemed to fix the issue but it is now starting to happen again. 

I have triple checked all my connections everything is secured tightly. I do not have any splitters. Power cord is going straight into a wall outlet. I have restarted my computer. I have reset and hard reset my modem. Still happening. Please, this is a huge inconvenience as we use streaming services a lot and work from home. 

2 Replies

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  • Hi DeXLV702,

    Those timeouts are worth a closer look. I suggest a service call so an on-site technician can ensure your upstream and downstream levels are within specifications. My team can schedule this for you, if you like! Email cox.help@cox.com with your full name, address, and a link to this page. Our appointment time slots are 8-10AM, 10-12, 1-3, 3-5, & 5-7PM, daily, so let us know what day and time would work best for you.

  • cpljp's avatar
    cpljp
    Contributor

    Try a new modem. If you're renting the gateway, exchange it at the cox store. Doubt its your computer