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tomas1jd
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Sunday, October 13th, 2019 5:00 PM

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Connection Issues T3/T4 Timeouts

Hello,

 

Recently moved into an older house. Over the last month have had a ton of t3 timeout, and a couple  t4s. Upgraded my router since the old one was a bit dated. Still had the same issues. Removed a splitter from the outside box, and only have 1 coax that goes right to my modem. Over the weekend I was out of town and had like 3 or 4 t3s. After being home for a little tonight had another t4 and lose connection for about 10 minutes.  Would love any suggestions! 

Edit: Before restarting my router had about 2-3000 uncorrectables across the downstream lines 

2019-10-13, 17:35:54 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1.;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:34:18 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:34:02 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:49 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:49 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:47 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:31 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:30 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:29 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:33:27 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:28:23 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 17:28:16 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 16:34:23 Critical (3) Resetting the cable modem due to docsDevResetNow
2019-10-13, 13:47:34 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 13:45:20 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-13, 02:00:28 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 13:49:15 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 13:40:49 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 13:36:23 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:50:10 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:49:59 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:49:48 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:49:46 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:49:39 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:49:38 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:49:04 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:48:10 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:47:22 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:47:17 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:46:20 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:46:02 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:46:01 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:46:01 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-12, 08:44:30 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-11, 17:00:11 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=3c:37:86:ea:d1:20;CMTS-MAC=00:01:5c:63:a2:56;CM-QOS=1.1;CM-VER=3.1;
2019-10-11, 17:00:02 Critical (3) No Ranging Response received - T3 time-o

 
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 483000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enable BPI+
IP Provisioning Mode Honor MDD IPv6 only
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR / MER Unerrored Codewords Correctable Codewords Uncorrectable Codewords
1 Locked QAM256 6 483000000 Hz 6.6 dBmV 39.9 dB 87173785 0 0
2 Locked QAM256 7 489000000 Hz 6.7 dBmV 39.7 dB 86011317 0 0
3 Locked QAM256 8 495000000 Hz 7.0 dBmV 40.0 dB 86014826 0 0
4 Locked QAM256 9 507000000 Hz 7.5 dBmV 40.0 dB 86018534 0 0
5 Locked QAM256 10 513000000 Hz 6.7 dBmV 39.8 dB 86022277 0 0
6 Locked QAM256 11 519000000 Hz 6.3 dBmV 39.7 dB 86026081 0 0
7 Locked QAM256 12 525000000 Hz 5.5 dBmV 39.3 dB 86024154 0 0
8 Locked QAM256 13 531000000 Hz 6.2 dBmV 39.6 dB 86027886 0 0
9 Locked QAM256 14 537000000 Hz 7.4 dBmV 39.9 dB 86031551 0 0
10 Locked QAM256 15 543000000 Hz 7.7 dBmV 39.8 dB 86035252 0 0
11 Locked QAM256 16 549000000 Hz 7.7 dBmV 39.8 dB 86039628 0 0
12 Locked QAM256 17 555000000 Hz 7.4 dBmV 39.6 dB 86042740 0 0
13 Locked QAM256 18 561000000 Hz 7.4 dBmV 39.5 dB 86046521 0 0
14 Locked QAM256 19 567000000 Hz 7.4 dBmV 39.4 dB 86050019 1 0
15 Locked QAM256 20 573000000 Hz 7.5 dBmV 39.5 dB 86054321 1 0
16 Locked QAM256 21 579000000 Hz 7.5 dBmV 39.4 dB 86057710 3 0
17 Locked QAM256 22 585000000 Hz 7.7 dBmV 39.1 dB 86061011 0 0
18 Locked QAM256 23 591000000 Hz 7.7 dBmV 39.2 dB 86065283 0 0
19 Locked QAM256 24 597000000 Hz 7.7 dBmV 39.0 dB 86068911 1 0
20 Locked QAM256 25 603000000 Hz 7.1 dBmV 38.9 dB 86072285 1 0
21 Locked QAM256 26 609000000 Hz 6.4 dBmV 38.6 dB 86075980 3 0
22 Locked QAM256 27 615000000 Hz 6.3 dBmV 38.6 dB 86080126 2 0
23 Locked QAM256 28 621000000 Hz 6.5 dBmV 38.4 dB 86083463 1 0
24 Locked QAM256 29 627000000 Hz 7.0 dBmV 38.3 dB 86087485 3 0
25 Locked QAM256 30 633000000 Hz 7.0 dBmV 38.2 dB 86090656 6 0
26 Locked QAM256 31 639000000 Hz 6.2 dBmV 37.8 dB 86094919 10 0
27 Locked QAM256 32 645000000 Hz 5.7 dBmV 37.7 dB 86098902 6 0
28 Locked QAM256 33 651000000 Hz 5.8 dBmV 37.5 dB 86102346 7 0
29 Locked QAM256 34 657000000 Hz 6.1 dBmV 37.6 dB 86106073 9 0
30 Locked QAM256 35 663000000 Hz 7.2 dBmV 37.6 dB 86106827 4 0
31 Locked QAM256 36 669000000 Hz 7.1 dBmV 37.5 dB 86109256 7 0
32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 0
Upstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power
1 Locked ATDMA 41 35800000 Hz 43.0 dBmV
2 Locked ATDMA 42 29400000 Hz 43.0 dBmV
3 Locked ATDMA 43 23000000 Hz 42.8 dBmV
4 Locked ATDMA 44 16600000 Hz 43.8 dBmV
5 Not Locked Unknown 0 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Hz 0.0 dBmV
Downstream OFDM Channels
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier Number Range Unerrored Codewords Correctable Codewords Uncorrectable Codewords
1 Locked 0, 1 37 722000000 Hz 8.3 dBmV 35.3 dB 1228 ~ 2867 5390248 3860573 0
2 Not Locked 0 0 0 Hz 7.1 dBmV 0.0 dB 0 ~ 4095 0 0 0
Upstream OFDMA Channels
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power
1 Not Locked Unknown 0 0 Hz 0 dBmV
2 Not Locked Unknown 0 0 Hz 0 dBmV

 

 

 

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