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Intermittent Connectivity Issues - Multiple Support Calls and Two Tech Visits

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Intermittent Connectivity Issues - Multiple Support Calls and Two Tech Visits

Hello,

 

I suddenly started having intermittent connection issues a few weeks ago. After the issues didn't go away, I attempted to work with Comcast phone support numerous times to troubleshoot; two technicians have also been out to the house.


Symptoms: Slow to load websites; significant lag during online gaming, to the point that it becomes unplayable; lagging/buffering during video streaming from Amazon and Netflix. These issues occur randomly during all hours of the day...doesn't appear to be a pattern. Online speed tests will show high D/L and U/L speeds even when the problem is occurring. However, I will also get poor D/L and U/L speeds when running the test. For instance, an hour ago, I was at about 120 Mbps D/L and around 12 Mpbs U/L. Now I'm at 21.3 Mbps D/L and 0.28 Mbps U/L.

 

To help rule out the SB6141 modem I had as being the issue, I replaced it with a new SB6183 modem a couple days ago. Still same issues occurring, so that leads me to believe the problem is likely not with the modem.

 

- The first couple of phone support people said my connections were good and advised me to replace my modem.

- The next phone support person I spoke with said he was seeing way too many T3 timeouts and said a technician should come to the house.

- One tech replaced a "booster" (Can't remember the correct device name) that was feeding the rest of the coax lines in my house. Other than that, he said everything seemed fine.

- The second tech said the booster was likely causing problems because the signal without the booster was great, so he removed it. He also dropped a new orange line from the pole, which is now sitting in my yard waiting to be buried. He also mentioned that someone on my street seemed to be generating a lot of signal noise on the line.

 

The problem has not been resolved at this point. Any ideas on how I can get this fixed?

 

Here is the Status of my modem:

 
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables
1 Locked QAM256 3 615000000 Hz -4.4 dBmV 38.4 dB 16130 218
2 Locked QAM256 1 603000000 Hz -4.1 dBmV 38.5 dB 16985 198
3 Locked QAM256 2 609000000 Hz -4.3 dBmV 38.4 dB 16114 118
4 Locked QAM256 4 621000000 Hz -4.7 dBmV 38.1 dB 16733 181
5 Locked QAM256 5 627000000 Hz -5.0 dBmV 38.0 dB 16901 179
6 Locked QAM256 6 633000000 Hz -5.1 dBmV 37.9 dB 16747 131
7 Locked QAM256 7 639000000 Hz -5.1 dBmV 37.7 dB 16538 238
8 Locked QAM256 8 645000000 Hz -5.3 dBmV 37.7 dB 16916 211
9 Locked QAM256 9 651000000 Hz -5.5 dBmV 37.5 dB 16778 167
10 Locked QAM256 10 657000000 Hz -5.7 dBmV 37.4 dB 17511 177
11 Locked QAM256 11 663000000 Hz -5.7 dBmV 37.3 dB 16753 314
12 Locked QAM256 12 669000000 Hz -5.7 dBmV 37.2 dB 16862 195
13 Locked QAM256 14 681000000 Hz -5.4 dBmV 37.2 dB 15609 192
14 Locked QAM256 15 687000000 Hz -5.5 dBmV 37.1 dB 15458 135
15 Locked QAM256 19 711000000 Hz -6.3 dBmV 36.8 dB 15046 242
16 Locked QAM256 20 717000000 Hz -6.5 dBmV 36.6 dB 15352 233

 

 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 3 5120 Ksym/sec 23000000 Hz 36.8 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 35800000 Hz 40.8 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 29400000 Hz 39.0 dBmV


 

Current System Time: Sun Mar 04 14:16:29 2018

 

 

 Here is the Event Log from my modem:
Time Priority Description
Sun Mar 04 14:14:00 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
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=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Mar 02 11:59:51 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Mar 02 11:59:48 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:59:48 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:59:33 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:59:33 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:59:12 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:59:12 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:56:19 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:00:06 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Mar 02 11:00:04 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 11:00:03 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:58:55 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:58:55 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:55:55 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Mar 02 10:31:02 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
Fri Mar 02 10:31:00 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:30:59 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:30:16 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:30:16 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:29:53 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:29:52 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:27:04 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 10:26:57 2018 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 08:23:42 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 06:54:26 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 06:54:26 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 06:54:26 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 06:44:55 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 06:44:55 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 06:44:55 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 04:02:07 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 04:02:07 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 04:02:07 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:51:10 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:51:10 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:51:10 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:26:41 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:26:41 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:26:41 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:03:50 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:03:50 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 03:03:50 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 02:48:54 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 02:48:54 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 02:48:54 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 02:10:58 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 02:10:58 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 02:10:58 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Fri Mar 02 01:32:07 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Critical (3) No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.0;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
Fri Mar 02 01:30:41 2018 Critical (3) Resetting the cable modem due to docsDevResetNow
Fri Mar 02 01:27:39 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Thu Mar 01 06:45:52 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=bc:2e:48:d7:b6:77;CMTS-MAC=00:01:5c:85:fa:6f;CM-QOS=1.1;CM-VER=3.0;
Expert

Re: Intermittent Connectivity Issues - Multiple Support Calls and Two Tech Visits

This sounds like the problems are outside of your control. We'll get a corporate employee to take a look at the status of your repairs.

 

FYI: They owe you a $20 credit for every tech visit after the first for the same problem.You can also get a credit for your service from the time you first reported the issue until it is resolved.

 

I've asked a Comcast employee to help you. You should expect a reply in this thread. 

Official Employee

Re: Intermittent Connectivity Issues - Multiple Support Calls and Two Tech Visits

Hello mdjd, I can assist you with getting your connectivity issue resolved. Can you please send me a private message with your full name, street address, and account number by clicking on my name (ComcastAmir) and then "private message me"?