very frequent disconnects in internet service

[dd97]

Hi all,

I started having an issue with my internet cutting out intermittently about 2 months ago. It drops for anywhere from 1-10 seconds and comes back up. I have called comcast a few times and they will not send a tech to check the lines or the tap. I use my own modem. At first, I used a modem that worked perfectly at my old address with xfinity. I thought these timeouts were because it was nearing EOL so I replaced it with a brand new Netgear CM700 and the disconnects kept happening. I looked in the modem logs and I see a lot of T3 timeouts. I've got a constant ping to google going and I see it timing out during these interruptions in service. I also have a constant ping to my router going and it does not time out. This troubleshooting is happening on a wired connection.

Here is my modem data.

modem log:

Apr 27 2020 08:11:29	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 08:11:29	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 08:29:31	Critical (3)	Ranging Request Retries exhausted
Apr 27 2020 08:29:31	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
Apr 27 2020 08:45:31	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 08:54:25	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 08:54:25	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 08:55:45	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 08:55:45	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 08:55:49	Critical (3)	Ranging Request Retries exhausted
Apr 27 2020 08:55:49	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
Apr 27 2020 09:31:25	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 09:32:02	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 09:32:02	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:23:17	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:23:17	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:24:17	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:24:17	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:24:20	Critical (3)	Ranging Request Retries exhausted
Apr 27 2020 10:24:20	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
Apr 27 2020 10:25:36	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:25:37	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:26:56	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:26:56	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:28:16	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:28:16	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:29:36	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:29:36	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:30:56	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:30:56	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:32:16	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:32:16	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:33:36	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:33:36	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:34:57	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:34:57	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:36:15	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:36:16	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 10:37:35	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
Apr 27 2020 10:37:35	Critical (3)	No Ranging Response received - T3 time-out
Apr 27 2020 11:01:53	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1

downstream:

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	UnCorrectables
1	Locked	QAM 256	1	429000000 Hz	10.8 dBmV	40.3 dB	0	0
2	Locked	QAM 256	2	435000000 Hz	10.6 dBmV	38.9 dB	4207	0
3	Locked	QAM 256	3	447000000 Hz	10.0 dBmV	38.6 dB	7	0
4	Locked	QAM 256	4	453000000 Hz	10.0 dBmV	38.6 dB	0	0
5	Locked	QAM 256	5	459000000 Hz	9.5 dBmV	38.6 dB	10	0
6	Locked	QAM 256	6	465000000 Hz	9.5 dBmV	38.6 dB	0	0
7	Locked	QAM 256	7	471000000 Hz	9.5 dBmV	38.9 dB	0	0
8	Locked	QAM 256	8	477000000 Hz	9.0 dBmV	38.9 dB	0	0
9	Locked	QAM 256	9	483000000 Hz	9.0 dBmV	38.6 dB	0	0
10	Locked	QAM 256	10	489000000 Hz	8.4 dBmV	38.9 dB	0	0
11	Locked	QAM 256	11	495000000 Hz	8.3 dBmV	38.9 dB	0	0
12	Locked	QAM 256	12	501000000 Hz	8.3 dBmV	38.9 dB	0	0
13	Locked	QAM 256	13	507000000 Hz	7.6 dBmV	38.6 dB	0	0
14	Locked	QAM 256	14	513000000 Hz	7.4 dBmV	38.6 dB	0	0
15	Locked	QAM 256	15	519000000 Hz	6.9 dBmV	38.6 dB	0	0
16	Locked	QAM 256	16	525000000 Hz	6.8 dBmV	37.6 dB	0	0
17	Locked	QAM 256	17	531000000 Hz	6.5 dBmV	38.9 dB	0	0
18	Locked	QAM 256	18	537000000 Hz	6.0 dBmV	38.6 dB	5	0
19	Locked	QAM 256	19	543000000 Hz	5.8 dBmV	37.3 dB	7	0
20	Locked	QAM 256	20	549000000 Hz	5.5 dBmV	37.6 dB	0	0
21	Locked	QAM 256	21	555000000 Hz	5.6 dBmV	36.6 dB	0	0
22	Locked	QAM 256	22	561000000 Hz	5.5 dBmV	36.3 dB	0	0
23	Locked	QAM 256	23	567000000 Hz	5.4 dBmV	37.6 dB	0	0
24	Locked	QAM 256	24	573000000 Hz	5.4 dBmV	38.2 dB	0	0
25	Locked	QAM 256	25	579000000 Hz	4.9 dBmV	37.6 dB	0	0
26	Locked	QAM 256	26	585000000 Hz	5.0 dBmV	36.9 dB	0	0
27	Locked	QAM 256	27	591000000 Hz	4.6 dBmV	37.9 dB	0	0
28	Locked	QAM 256	28	597000000 Hz	4.0 dBmV	37.9 dB	0	0
29	Locked	QAM 256	29	603000000 Hz	4.0 dBmV	38.2 dB	0	0
30	Locked	QAM 256	30	609000000 Hz	3.4 dBmV	38.2 dB	0	0
31	Locked	QAM 256	31	615000000 Hz	3.4 dBmV	37.3 dB	0	0
32	Locked	QAM 256	32	621000000 Hz	2.9 dBmV	36.9 dB	0	0

upstream:

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	8	5120 Ksym/sec	16600000 Hz	42.0 dBmV
2	Locked	ATDMA	7	5120 Ksym/sec	23000000 Hz	42.5 dBmV
3	Locked	ATDMA	6	5120 Ksym/sec	29400000 Hz	42.0 dBmV
4	Locked	ATDMA	5	5120 Ksym/sec	35800000 Hz	42.0 dBmV
5	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
6	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
7	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
8	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV

Let me know if you can help or if you need me to post more info.

Thanks for looking.

[dd97]

downstream channels today:

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	UnCorrectables
1	Locked	QAM 256	1	429000000 Hz	11.6 dBmV	40.3 dB	0	0
2	Locked	QAM 256	2	435000000 Hz	11.5 dBmV	38.6 dB	4207	0
3	Locked	QAM 256	3	447000000 Hz	11.0 dBmV	38.9 dB	7	0
4	Locked	QAM 256	4	453000000 Hz	11.0 dBmV	38.6 dB	0	0
5	Locked	QAM 256	5	459000000 Hz	10.5 dBmV	38.6 dB	10	0
6	Locked	QAM 256	6	465000000 Hz	10.4 dBmV	38.9 dB	1	0
7	Locked	QAM 256	7	471000000 Hz	10.4 dBmV	38.9 dB	0	0
8	Locked	QAM 256	8	477000000 Hz	9.9 dBmV	38.6 dB	13	0
9	Locked	QAM 256	9	483000000 Hz	9.9 dBmV	38.6 dB	1	0
10	Locked	QAM 256	10	489000000 Hz	9.3 dBmV	38.6 dB	2	0
11	Locked	QAM 256	11	495000000 Hz	9.1 dBmV	38.9 dB	3	0
12	Locked	QAM 256	12	501000000 Hz	9.1 dBmV	38.6 dB	3	0
13	Locked	QAM 256	13	507000000 Hz	8.5 dBmV	38.6 dB	5	0
14	Locked	QAM 256	14	513000000 Hz	8.4 dBmV	38.6 dB	4	0
15	Locked	QAM 256	15	519000000 Hz	7.8 dBmV	38.9 dB	11	0
16	Locked	QAM 256	16	525000000 Hz	7.6 dBmV	37.6 dB	27	0
17	Locked	QAM 256	17	531000000 Hz	7.5 dBmV	37.3 dB	16	0
18	Locked	QAM 256	18	537000000 Hz	6.9 dBmV	37.6 dB	44	0
19	Locked	QAM 256	19	543000000 Hz	6.8 dBmV	37.3 dB	75	0
20	Locked	QAM 256	20	549000000 Hz	6.4 dBmV	37.6 dB	46	0
21	Locked	QAM 256	21	555000000 Hz	6.6 dBmV	37.3 dB	40	0
22	Locked	QAM 256	22	561000000 Hz	6.6 dBmV	36.6 dB	51	0
23	Locked	QAM 256	23	567000000 Hz	6.5 dBmV	37.6 dB	39	0
24	Locked	QAM 256	24	573000000 Hz	6.5 dBmV	38.2 dB	37	0
25	Locked	QAM 256	25	579000000 Hz	6.0 dBmV	37.6 dB	43	0
26	Locked	QAM 256	26	585000000 Hz	6.1 dBmV	37.9 dB	38	0
27	Locked	QAM 256	27	591000000 Hz	6.0 dBmV	37.9 dB	54	0
28	Locked	QAM 256	28	597000000 Hz	5.5 dBmV	37.6 dB	78	0
29	Locked	QAM 256	29	603000000 Hz	5.4 dBmV	38.2 dB	73	0
30	Locked	QAM 256	30	609000000 Hz	4.6 dBmV	37.9 dB	192	0
31	Locked	QAM 256	31	615000000 Hz	4.5 dBmV	37.3 dB	253	0
32	Locked	QAM 256	32	621000000 Hz	4.0 dBmV	36.9 dB	606	0

[dd97]

still happening over a dozen times a day. xfinity will not send a tech out. I have called multiple times and chatted. no help from anyone.

[dd97]

ping script. put it in a for loop so i can print the date/time before each ping attempt. also didn't want to do a constant ping so i let it sleep for 10 seconds.

@echo off
setlocal enableDelayedExpansion
set file=C:\Users\David\Documents\pingers\google.txt
FOR /L %%L IN (1,1,2147483648) DO @(
 echo !date! >> %file%
 echo !time! >> %file%
 ping -n 4 -l 4 www.google.com >> %file%
 timeout /t 10 /nobreak > NUL
)

[dd97]

more of the same. 

Time	Priority	Description
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 04 2020 20:41:35	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 01:28:24	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 05 2020 01:28:24	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 01:53:45	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 05 2020 01:53:45	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 01:54:45	Critical (3)	Ranging Request Retries exhausted
May 05 2020 01:54:45	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
May 05 2020 01:56:05	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 02:37:17	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 05 2020 02:37:17	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 02:37:37	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 05 2020 02:37:37	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 08:58:01	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 05 2020 08:58:01	Critical (3)	No Ranging Response received - T3 time-out
May 05 2020 09:14:21	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync
May 05 2020 09:14:27	Warning (5)	Lost MDD Timeout
May 05 2020 09:14:59	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync
May 05 2020 09:15:05	Warning (5)	Lost MDD Timeout
May 05 2020 09:15:18	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync
May 05 2020 09:15:25	Warning (5)	Lost MDD Timeout
May 05 2020 09:15:34	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync
May 05 2020 09:15:37	Warning (5)	Lost MDD Timeout
May 05 2020 11:24:21	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 01:35:05	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 06 2020 01:35:05	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 02:50:18	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 06 2020 02:50:18	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 05:15:24	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 06 2020 05:15:24	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 07:34:51	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 06 2020 07:34:52	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 09:48:38	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 06 2020 09:48:38	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 09:49:01	Critical (3)	Ranging Request Retries exhausted
May 06 2020 09:49:01	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
May 06 2020 09:49:01	Critical (3)	Unicast Ranging Received Abort Response - initializing MAC
May 06 2020 09:49:02	Critical (3)	No Ranging Response received - T3 time-out
May 06 2020 09:50:38	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
May 06 2020 09:51:35	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
May 06 2020 11:22:27	Critical (3)	No Ranging Response received - T3 time-out

[N0_service]

I'm having very similar issues and have been unable to get a response from Comcast or through this forum.  Hopefully, you'll have better luck as the issue is likely ingress noise in the plant outside your home.

[dcoy2222]

Hey, I have the same setup and I am having the same problems did you ever resolve your issue?