Assistance interpreting logs from cm700 Modem regarding slow internet.

Question

Hello, I'm having an issue with my internet being intermittently slow, and cutting out. I have worked with my ISP, and they ensure that I have a solid connection to my site, and I have made sure that my wiring is all fresh, and settings are correct. I am still seeing connection speeds that dip down extremely low back and forth throughout the day. I already ruled out my router because I hard wired straight to my modem, bypassing the router completely, and the slowness persists. I have the following logs from my modem, I'm hoping maybe someone can assist in giving me an idea of what they mean. Thank you in advance:

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	UnCorrectables
1	Locked	QAM 256	1	561000000 Hz	-4.5 dBmV	37.6 dB	0	0
2	Locked	QAM 256	2	567000000 Hz	-5.0 dBmV	37.3 dB	8	0
3	Locked	QAM 256	3	573000000 Hz	-5.7 dBmV	38.6 dB	0	0
4	Locked	QAM 256	4	579000000 Hz	-6.2 dBmV	37.3 dB	0	0
5	Locked	QAM 256	5	585000000 Hz	-6.5 dBmV	38.6 dB	17	0
6	Locked	QAM 256	6	591000000 Hz	-7.4 dBmV	37.6 dB	0	0
7	Locked	QAM 256	7	597000000 Hz	-7.9 dBmV	37.6 dB	5	0
8	Locked	QAM 256	8	603000000 Hz	-8.9 dBmV	37.6 dB	0	0
9	Locked	QAM 256	9	609000000 Hz	-9.7 dBmV	36.6 dB	0	0
10	Locked	QAM 256	10	615000000 Hz	-10.5 dBmV	36.6 dB	7	0
11	Locked	QAM 256	11	621000000 Hz	-11.0 dBmV	35.5 dB	6	0
12	Locked	QAM 256	12	627000000 Hz	-11.4 dBmV	31.6 dB	4618247	2979120
13	Locked	QAM 256	13	633000000 Hz	-11.2 dBmV	31.3 dB	3843108	11791473
14	Locked	QAM 256	16	651000000 Hz	-11.5 dBmV	26.2 dB	458394	3091615
15	Locked	QAM 256	17	657000000 Hz	-12.0 dBmV	36.3 dB	0	0
16	Locked	QAM 256	18	663000000 Hz	-12.2 dBmV	36.3 dB	1	0
17	Locked	QAM 256	19	669000000 Hz	-12.0 dBmV	36.3 dB	0	0
18	Locked	QAM 256	20	675000000 Hz	-11.7 dBmV	35.7 dB	0	0
19	Locked	QAM 256	21	681000000 Hz	-11.2 dBmV	36.6 dB	18	0
20	Locked	QAM 256	22	687000000 Hz	-10.9 dBmV	36.3 dB	0	0
21	Locked	QAM 256	23	693000000 Hz	-10.7 dBmV	36.3 dB	6	0
22	Locked	QAM 256	24	699000000 Hz	-10.0 dBmV	36.9 dB	0	0
23	Locked	QAM 256	25	705000000 Hz	-9.5 dBmV	36.9 dB	13	0
24	Locked	QAM 256	26	711000000 Hz	-7.9 dBmV	37.3 dB	0	0
25	Locked	QAM 256	27	717000000 Hz	-7.0 dBmV	37.6 dB	0	0
26	Locked	QAM 256	28	723000000 Hz	-6.0 dBmV	37.6 dB	12	0
27	Locked	QAM 256	29	729000000 Hz	-5.5 dBmV	36.4 dB	54	0
28	Locked	QAM 256	30	735000000 Hz	-4.9 dBmV	36.2 dB	0	0
29	Locked	QAM 256	31	741000000 Hz	-4.5 dBmV	35.9 dB	7	1
30	Locked	QAM 256	32	747000000 Hz	-5.0 dBmV	35.8 dB	8	0
31	Not Locked	N/A	N/A	0 Hz	0.0 dBmV	0.0 dB	0	0
32	Not Locked	N/A	N/A	0 Hz	0.0 dBmV	0.0 dB	0	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	36	2560 Ksym/sec	21400000 Hz	54.0 dBmV
2	Locked	ATDMA	33	5120 Ksym/sec	37500000 Hz	54.0 dBmV
3	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
4	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 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

and then these from the Event Logs:

Time	Priority	Description
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 05:49:52	Error (4)	Map Request Retry Timeout
Sep 30 2022 05:50:03	Warning (5)	Lost MDD Timeout
Sep 30 2022 06:21:14	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 06:21:15	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:11:24	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 07:11:34	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:20:59	Error (4)	Service Add Ack rejected - Invalid transaction ID
Sep 30 2022 07:21:34	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:26:55	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 07:27:41	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:30:48	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 07:30:51	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:33:35	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 07:33:55	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:35:17	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 07:35:18	Warning (5)	Lost MDD Timeout
Sep 30 2022 07:37:46	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 07:38:09	Warning (5)	Lost MDD Timeout
Sep 30 2022 08:02:44	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 08:02:45	Warning (5)	Lost MDD Timeout
Sep 30 2022 08:19:55	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 08:20:04	Warning (5)	Lost MDD Timeout
Time Not Established	Critical (3)	DHCP failed - RS sent, no RA received
Time Not Established	Error (4)	Primary lease failed, IPv4 fallback initiated
Sep 30 2022 08:38:16	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 30 2022 08:38:18	Warning (5)	RCS Partial Service
Sep 30 2022 08:38:36	Warning (5)	Lost MDD Timeout
Sep 30 2022 08:46:49	Error (4)	Map Request Retry Timeout
Sep 30 2022 08:46:51	Warning (5)	Lost MDD Timeout
Sep 30 2022 08:54:29	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 08:54:56	Warning (5)	Lost MDD Timeout
Sep 30 2022 08:59:27	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 08:59:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 09:02:59	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 09:03:02	Warning (5)	Lost MDD Timeout
Sep 30 2022 09:20:33	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 09:20:35	Warning (5)	Lost MDD Timeout
Sep 30 2022 09:26:20	Error (4)	Service Change Response rejected - Invalid transaction ID
Sep 30 2022 09:26:35	Warning (5)	Lost MDD Timeout

FURRYe38 · Answer

You have errors and criticals that the ISP needs to review and help resolve.
https://highspeed.tips/docsis-events/
&nbsp;
Power levels are too high:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
&nbsp;
Have the ISP check the signal and line quality UP to the modem.&nbsp;Be sure the ISP provisions the modem correctly.Be sure there are no coax cable line splitters in the between the modem and ISP service box. Be sure fittings are snug.&nbsp;Be sure your using good quality RG6 coax cable up to the modem.&nbsp;Be sure to power OFF the modem for 1 minute then back ON.https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

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Assistance interpreting logs from cm700 Modem regarding slow internet.

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