Skip to main content
alita99's profile
alita99
1st Like
1st Reply
1st Topic

New Poster

 • 

2 Messages

Wednesday, May 13th, 2020

Closed

CM1000 Critical (3) T3 Timeout and intermittent connectivity

Hello Community!

For the past week I've been struggling with intermittent connectivity. Sometimes I stay online for several hours, sometimes even a day, but more often than not, I find myself with no internet and serious loss productivity (especially with WFH these days).

 

I have been told that the things look OK from Comcast side and that the issue is my modem or something. I purchased this CM1000 from Amazon about 5 months back brand new. 

 

Could someone shed some light on if this is a modem issue or one of the engineers check the local node out? 

 

Thank you so much.

 

Time Priority Description
2020-05-13, 21:25:03 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:25:02 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:25:02 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:24:25 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:24:23 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:24:23 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:24:12 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:24:11 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:22:43 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:22:41 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:22:41 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:22:34 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:22:31 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:21:40 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:21:38 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:21:38 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:20:55 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:20:52 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:54 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:53 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:53 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:28 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:27 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:27 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:14 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:19:12 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:17:35 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:17:32 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:16:59 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:16:57 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:16:57 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:16:51 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:16:49 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:16:49 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:15:53 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:15:52 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:14:49 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:14:48 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:14:48 Critical (3) Ranging Request Retries exhausted;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 21:14:16 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=28:80:88:ac:d7:b0;CMTS-MAC=00:38:df:08:ba:ae;CM-QOS=1.1;CM-VER=3.1;

 

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 639000000 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 29 639000000 Hz -1.3 dBmV 40.2 dB 687060402 0 0
2 Locked QAM256 1 459000000 Hz 0.4 dBmV 41.5 dB 684864984 0 0
3 Locked QAM256 2 465000000 Hz 0.4 dBmV 41.5 dB 684868832 0 0
4 Locked QAM256 3 471000000 Hz 1.8 dBmV 41.8 dB 684872286 0 0
5 Locked QAM256 4 477000000 Hz 2.7 dBmV 42.0 dB 684876401 0 0
6 Locked QAM256 5 483000000 Hz 4.2 dBmV 42.3 dB 684879795 0 0
7 Locked QAM256 6 489000000 Hz 6.0 dBmV 42.7 dB 684883051 0 0
8 Locked QAM256 7 495000000 Hz 8.1 dBmV 42.9 dB 684886764 0 0
9 Locked QAM256 8 507000000 Hz 6.0 dBmV 42.5 dB 684894525 0 0
10 Locked QAM256 9 513000000 Hz 4.1 dBmV 42.4 dB 684898059 0 0
11 Locked QAM256 10 519000000 Hz 2.4 dBmV 42.0 dB 684901854 0 0
12 Locked QAM256 11 525000000 Hz 1.1 dBmV 41.3 dB 684905902 0 0
13 Locked QAM256 12 531000000 Hz -1.1 dBmV 40.5 dB 684909922 0 0
14 Locked QAM256 13 543000000 Hz -1.6 dBmV 40.5 dB 684912984 0 0
15 Locked QAM256 14 549000000 Hz -1.3 dBmV 40.5 dB 684917005 0 0
16 Locked QAM256 15 555000000 Hz -1.3 dBmV 40.5 dB 684920168 0 0
17 Locked QAM256 16 561000000 Hz 0.2 dBmV 41.1 dB 684924271 0 0
18 Locked QAM256 17 567000000 Hz 0.5 dBmV 41.1 dB 684928339 0 0
19 Locked QAM256 18 573000000 Hz 2.1 dBmV 41.5 dB 684931193 0 0
20 Locked QAM256 19 579000000 Hz 4.2 dBmV 42.0 dB 684935484 0 0
21 Locked QAM256 20 585000000 Hz 7.0 dBmV 42.5 dB 684939122 0 0
22 Locked QAM256 21 591000000 Hz 8.1 dBmV 42.2 dB 684943144 0 0
23 Locked QAM256 22 597000000 Hz 7.1 dBmV 42.1 dB 684946473 0 0
24 Locked QAM256 23 603000000 Hz 5.3 dBmV 41.9 dB 684950600 0 0
25 Locked QAM256 24 609000000 Hz 2.9 dBmV 41.5 dB 684953940 0 0
26 Locked QAM256 25 615000000 Hz 1.8 dBmV 41.4 dB 684958121 0 0
27 Locked QAM256 26 621000000 Hz -0.4 dBmV 40.6 dB 684961269 0 0
28 Locked QAM256 27 627000000 Hz -0.1 dBmV 40.7 dB 684965038 0 0
29 Locked QAM256 28 633000000 Hz -0.9 dBmV 40.3 dB 684969202 0 0
30 Locked QAM256 30 645000000 Hz -1.2 dBmV 40.1 dB 684972728 0 0
31 Locked QAM256 31 651000000 Hz -0.2 dBmV 40.5 dB 684973630 0 0
32 Locked QAM256 32 657000000 Hz 0.4 dBmV 40.5 dB 684973537 0 0
Upstream Bonded Channels (Partial Service)
Channel Lock Status Modulation Channel ID Frequency Power
1 Locked ATDMA 1 17300000 Hz 48.8 dBmV
2 Locked ATDMA 2 23700000 Hz 48.8 dBmV
3 Locked ATDMA 3 30100000 Hz 57.0 dBmV
4 Locked ATDMA 4 36500000 Hz 46.8 dBmV
5 Locked ATDMA 5 41200000 Hz 47.3 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, 1 159 722000000 Hz 0.3 dBmV 23.3 dB 1126 ~ 2969 644947646 641670353 13
2 Not Locked 0 0 0 Hz 4.5 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
Current System Time: Wed May 13 21:32:01 2020
System Up Time: 4:12:19

Question

565

0

0

0

This conversation is no longer open for comments or replies and is no longer visible to community members.

Oldest First
Selected Oldest First
No Responses!
forum icon

New to the Community?

Start Here