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goaty's avatar
goaty
New Contributor

Intermittent connection - inconsistent upload - T3 / T4 Timeouts?

I keep getting:

A: randomly disconnected (no app can access the internet for a full minute or two)

B: random ping spikes (perfect 26 ms ping then suddenly a lag spike with severe rubberbanding)

C: inconsistent upload speeds (usually a steady 11mb/s, then drop to 2mb/s or LOWER. my plan is 15mb/s up but I have trouble keeping a 2.5 mb/s live stream going)

I've been though about 3 different modems, and have had a tech come out and say everything on their side is OK. Maybe you guys can spot something in my levels/logs?

 
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Frequency start Value
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 819000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enable BPI+
IP Provisioning Mode Honor MDD IPv4 only
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR / MER Unerrored Codewords Correctable Codewords Uncorrectable Codewords
1 Locked QAM256 28 819000000 Hz 5.3 dBmV 37.5 dB 47605736 916 0
2 Locked QAM256 25 801000000 Hz 5.3 dBmV 37.6 dB 47652717 589 0
3 Locked QAM256 26 807000000 Hz 5.4 dBmV 37.5 dB 47661394 596 0
4 Locked QAM256 27 813000000 Hz 5.3 dBmV 37.6 dB 47671906 861 0
5 Locked QAM256 62 975000000 Hz 3.6 dBmV 36.5 dB 46543638 1031 0
6 Locked QAM256 29 825000000 Hz 5.2 dBmV 37.6 dB 47689540 1026 0
7 Locked QAM256 30 831000000 Hz 5.3 dBmV 37.4 dB 47698816 949 0
8 Locked QAM256 31 837000000 Hz 5.2 dBmV 37.5 dB 47707749 1131 0
9 Locked QAM256 32 843000000 Hz 5.3 dBmV 37.4 dB 47726377 1295 0
10 Locked QAM256 33 849000000 Hz 5.4 dBmV 37.2 dB 47734930 1610 0
11 Locked QAM256 34 855000000 Hz 5.4 dBmV 37.3 dB 47743996 1704 0
12 Locked QAM256 35 861000000 Hz 5.3 dBmV 37.1 dB 47752629 2396 0
13 Locked QAM256 36 867000000 Hz 5.2 dBmV 37.0 dB 47787454 3239 0
14 Locked QAM256 37 873000000 Hz 5.2 dBmV 36.7 dB 47768805 3659 0
15 Locked QAM256 38 879000000 Hz 4.9 dBmV 36.7 dB 47776751 5116 0
16 Locked QAM256 39 885000000 Hz 4.9 dBmV 36.7 dB 47756334 4905 0
17 Locked QAM256 40 891000000 Hz 4.7 dBmV 36.5 dB 47792280 7903 0
18 Locked QAM256 41 897000000 Hz 4.7 dBmV 36.3 dB 47800526 9642 0
19 Locked QAM256 42 903000000 Hz 4.7 dBmV 36.4 dB 47809835 8872 0
20 Locked QAM256 43 909000000 Hz 4.5 dBmV 36.2 dB 47820543 8420 0
21 Locked QAM256 44 915000000 Hz 4.5 dBmV 36.2 dB 47828761 9180 0
22 Locked QAM256 45 921000000 Hz 4.4 dBmV 36.3 dB 47839350 8057 0
23 Locked QAM256 46 927000000 Hz 4.3 dBmV 36.1 dB 47848923 7795 0
24 Locked QAM256 47 933000000 Hz 4.2 dBmV 36.2 dB 47857251 8244 0
25 Locked QAM256 48 939000000 Hz 4.0 dBmV 36.1 dB 47867295 8003 0
26 Locked QAM256 57 945000000 Hz 4.5 dBmV 36.7 dB 47880841 3760 0
27 Locked QAM256 58 951000000 Hz 4.2 dBmV 36.8 dB 47899626 3041 0
28 Locked QAM256 59 957000000 Hz 4.1 dBmV 36.6 dB 47909132 2912 0
29 Locked QAM256 60 963000000 Hz 3.9 dBmV 36.7 dB 47918763 2500 0
30 Locked QAM256 61 969000000 Hz 3.8 dBmV 36.4 dB 47927301 1566 0
31 Locked QAM256 63 981000000 Hz 3.0 dBmV 36.6 dB 47934702 674 0
32 Locked QAM256 64 987000000 Hz 2.8 dBmV 36.8 dB 47940962 304 0
Upstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power
1 Locked TDMA and ATDMA 1 18400000 Hz 41.0 dBmV
2 Locked ATDMA 2 23300000 Hz 42.4 dBmV
3 Locked ATDMA 3 29800000 Hz 43.9 dBmV
4 Locked ATDMA 4 36300000 Hz 43.9 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 Not Locked Unknown 0 0 Hz 0 dBmV 0 dB 0 ~ 0 0 0 0
2 Not Locked Unknown 0 0 Hz 0 dBmV 0 dB 0 ~ 0 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
Current System Time: Thu Oct 19 00:02:16 2017 
      Clear Log              Refresh       
 
Time Priority Description
2017-10-18, 23:45:57 Notice (6) CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: �; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 23:45:54 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 23:44:31 Notice (6) TLV-11 - unrecognized OID;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv4
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 22:59:24 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 22:59:19 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 22:59:19 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 22:59:11 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 22:59:10 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 22:56:54 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:55:13 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:55:10 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:36 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:28 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:25 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:22 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:21 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:11 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:09 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:53:06 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:52:55 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:52:53 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:52:51 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 21:49:07 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 20:20:40 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 20:20:40 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 20:18:40 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:38:25 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:38:22 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:37 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:37 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:36 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:36 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:35 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:35 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:34 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:34 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;
2017-10-18, 06:31:33 Critical (3) Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=b0:b9:8a:af:a6:00;CMTS-MAC=00:21:a0:fb:c1:89;CM-QOS=1.1;CM-VER=3.1;

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  • JonathanJ's avatar
    JonathanJ
    Former Moderator
    @goaty

    Please email your full address and primary name on the account to cox.help@cox.com so we can take a look.