Intermittent Slow Downs and Dropped Connection - Time Warner Internet

#1
This question is about "Intermittent Slow Downs and Dropped Connection", with Time Warner Cable internet and apps. Hi,
I live in Driftwood, Tx. I am paying for 200 mbps down and 20 mps up. I have been having connectivity issues for several months now. I had a Motorola MB7420 cable modem. Called Mortorola tech support, they said the upstream power levels were low. A Time Warner Technician came out and put in a new drop from street to house and put in a new cable from wall to modem. But, was still having intermittent issues. During day seemed to work better (time warner speed test would complete in a few seconds and would get 230 mpbs down and 23 up) than in the evening, when it would slow down to a crawl (speed test would start out at 200+, but would then slow down and would never complete). TW tech said it could be issue with modem. So I replaced with a Netgear CM600. Unfortunately, that did not fix the problem. Here is info from last few days since new modem was installed:

CONNECTION INFO

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 507000000 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 Correctables Uncorrectables
1 Locked QAM256 8 507000000 Hz 1.7 dBmV 41.6 dB 0 0
2 Locked QAM256 2 471000000 Hz 2.4 dBmV 43.8 dB 1 0
3 Locked QAM256 3 477000000 Hz 2.0 dBmV 43.5 dB 0 0
4 Locked QAM256 4 483000000 Hz 1.7 dBmV 43.3 dB 0 0
5 Locked QAM256 5 489000000 Hz 1.7 dBmV 43.2 dB 0 0
6 Locked QAM256 6 495000000 Hz 1.9 dBmV 43.4 dB 0 0
7 Locked QAM256 7 501000000 Hz 1.9 dBmV 43.1 dB 0 0
8 Locked QAM256 1 465000000 Hz 2.2 dBmV 43.6 dB 46 0
9 Locked QAM256 9 513000000 Hz 1.8 dBmV 43.1 dB 0 0
10 Locked QAM256 10 519000000 Hz 1.7 dBmV 43.0 dB 0 0
11 Locked QAM256 11 525000000 Hz 1.3 dBmV 42.6 dB 0 0
12 Locked QAM256 12 531000000 Hz 1.3 dBmV 42.6 dB 0 0
13 Locked QAM256 13 537000000 Hz 0.9 dBmV 42.2 dB 0 0
14 Locked QAM256 14 543000000 Hz 0.6 dBmV 41.8 dB 0 0
15 Locked QAM256 15 549000000 Hz 0.5 dBmV 41.9 dB 0 0
16 Locked QAM256 16 555000000 Hz 0.1 dBmV 41.3 dB 1 0
17 Locked QAM256 17 561000000 Hz -0.2 dBmV 41.9 dB 0 0
18 Locked QAM256 18 567000000 Hz -0.6 dBmV 41.4 dB 0 0
19 Locked QAM256 19 573000000 Hz -0.9 dBmV 41.4 dB 0 0
20 Locked QAM256 20 579000000 Hz -1.1 dBmV 40.9 dB 0 0
21 Locked QAM256 21 585000000 Hz -1.0 dBmV 40.9 dB 0 0
22 Locked QAM256 22 591000000 Hz -1.3 dBmV 40.8 dB 0 0
23 Locked QAM256 23 597000000 Hz -1.3 dBmV 40.7 dB 0 0
24 Locked QAM256 24 603000000 Hz -1.3 dBmV 40.4 dB 0 0

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 23900000 Hz 38.5 dBmV
2 Locked TDMA 1 2560 Ksym/sec 19000000 Hz 37.5 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 30400000 Hz 40.0 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 36900000 Hz 39.3 dBmV

ERROR LOG

Time Priority Description
2017-01-19, 10:33:36 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:33:36 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:33:21 Notice (6) Overriding MDD IP initialization parameters; IP provisioning mode = IPv6
2017-01-19, 10:33:12 Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:33:12 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:33:12 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:33:07 Notice (6) Honoring MDD; IP provisioning mode = IPv4
2017-01-19, 10:33:01 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-01-19, 10:30:49 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-01-19, 10:30:48 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-01-19, 10:30:47 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-01-19, 10:30:46 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-01-19, 10:27:22 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-01-19, 10:27:20 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:27:20 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:27:18 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:27:18 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:27:16 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:27:16 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:26:59 Warning (5) MDD message timeout;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-19, 10:26:58 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-18, 13:48:45 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-17, 13:59:07 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-17, 13:59:07 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-17, 13:58:53 Notice (6) Overriding MDD IP initialization parameters; IP provisioning mode = IPv6
2017-01-17, 13:58:43 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;
2017-01-17, 13:58:43 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=b0:7f:b9:32:16:40;CMTS-MAC=00:17:10:91:9a:83;CM-QOS=1.1;CM-VER=3.0;




This topic covered Intermittent Slow Downs and Dropped Connection, and TWC cable internet service.
 
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