CM700 in and out connection issue

Question

I have been having in and out connectivity issues lately. I have read some of the past postings but I'm not sure how I can solve it.

Could someone please help me?

I am very dim on internet connection and pc related topics so if you can be so kind to explain in a way that a dummy like myself could understand, it would be really appreciated!

For upstream bonded channels, it shows only 4 being used. From other postings I see all the 8 being used, does this have anything to do with the issue I am having??

Any help would be really appreciated! Thank you in advance!!

Time	Priority	Description
Aug 31 2022 06:45:49	Warning (5)	TEK Invalid - Invalid Key Sequence Number
Aug 31 2022 11:22:46	Error (4)	Map Request Retry Timeout
Aug 31 2022 15:46:48	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Aug 31 2022 21:04:53	Critical (3)	No Ranging Response received - T3 time-out
Sep 01 2022 20:00:05	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 02 2022 03:58:18	Critical (3)	No Ranging Response received - T3 time-out
Time Not Established	Critical (3)	DHCP FAILED - Discover sent, no offer received
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out
Sep 02 2022 21:03:19	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 02 2022 21:04:01	Error (4)	Map Request Retry Timeout
Sep 02 2022 21:12:42	Critical (3)	No Ranging Response received - T3 time-out
Sep 02 2022 22:01:42	Error (4)	Map Request Retry Timeout
Sep 03 2022 02:04:24	Critical (3)	No Ranging Response received - T3 time-out
Sep 03 2022 13:35:54	Warning (5)	Lost MDD Timeout
Sep 03 2022 18:29:24	Critical (3)	No Ranging Response received - T3 time-out
Sep 03 2022 20:31:41	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 03 2022 21:01:50	Critical (3)	No Ranging Response received - T3 time-out
Sep 04 2022 07:21:15	Warning (5)	Lost MDD Timeout
Sep 04 2022 09:35:59	Critical (3)	No Ranging Response received - T3 time-out
Sep 05 2022 02:45:51	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 05 2022 12:35:57	Critical (3)	No Ranging Response received - T3 time-out
Sep 05 2022 20:23:25	Warning (5)	Lost MDD Timeout
Sep 05 2022 23:23:58	Critical (3)	No Ranging Response received - T3 time-out
Sep 06 2022 14:45:51	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 06 2022 15:01:40	Critical (3)	No Ranging Response received - T3 time-out
Sep 07 2022 11:06:20	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 07 2022 11:10:36	Warning (5)	Lost MDD Timeout
Sep 07 2022 11:31:50	Error (4)	Map Request Retry Timeout
Sep 07 2022 19:16:57	Critical (3)	No Ranging Response received - T3 time-out
Sep 08 2022 12:56:03	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 08 2022 15:17:33	Critical (3)	No Ranging Response received - T3 time-out
Sep 09 2022 09:52:08	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 09 2022 09:52:10	Warning (5)	RCS Partial Service
Sep 09 2022 09:52:16	Warning (5)	Lost MDD Timeout
Sep 09 2022 10:22:08	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 09 2022 15:24:54	Critical (3)	No Ranging Response received - T3 time-out
Sep 10 2022 22:22:08	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option
Sep 11 2022 01:07:58	Critical (3)	No Ranging Response received - T3 time-out
Sep 11 2022 09:33:32	Warning (5)	Lost MDD Timeout
Sep 11 2022 09:46:32	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	UnCorrectables
1	Locked	QAM 256	12	561000000 Hz	-0.2 dBmV	40.9 dB	0	0
2	Locked	QAM 256	11	567000000 Hz	-0.2 dBmV	40.3 dB	0	0
3	Locked	QAM 256	10	573000000 Hz	-0.2 dBmV	40.9 dB	0	0
4	Locked	QAM 256	9	579000000 Hz	-0.4 dBmV	40.3 dB	0	0
5	Locked	QAM 256	8	585000000 Hz	-0.7 dBmV	40.3 dB	0	0
6	Locked	QAM 256	7	591000000 Hz	-1.0 dBmV	40.9 dB	0	0
7	Locked	QAM 256	6	597000000 Hz	-1.0 dBmV	40.9 dB	0	0
8	Locked	QAM 256	5	603000000 Hz	-0.9 dBmV	40.9 dB	0	0
9	Locked	QAM 256	1	609000000 Hz	-1.2 dBmV	40.3 dB	0	0
10	Locked	QAM 256	2	615000000 Hz	-1.5 dBmV	40.3 dB	0	0
11	Locked	QAM 256	3	621000000 Hz	-2.0 dBmV	40.9 dB	0	0
12	Locked	QAM 256	4	627000000 Hz	-2.2 dBmV	40.3 dB	0	0
13	Locked	QAM 256	30	633000000 Hz	-2.2 dBmV	40.3 dB	0	0
14	Locked	QAM 256	31	639000000 Hz	-2.0 dBmV	40.9 dB	0	0
15	Locked	QAM 256	32	645000000 Hz	-1.7 dBmV	40.3 dB	0	0
16	Locked	QAM 256	13	651000000 Hz	-1.7 dBmV	40.9 dB	0	0
17	Locked	QAM 256	14	657000000 Hz	-2.0 dBmV	40.3 dB	0	0
18	Locked	QAM 256	15	663000000 Hz	-2.0 dBmV	40.3 dB	0	0
19	Locked	QAM 256	16	669000000 Hz	-1.9 dBmV	40.3 dB	0	0
20	Locked	QAM 256	17	681000000 Hz	-1.5 dBmV	40.9 dB	0	0
21	Locked	QAM 256	18	687000000 Hz	-1.5 dBmV	40.3 dB	0	0
22	Locked	QAM 256	19	693000000 Hz	-1.7 dBmV	40.9 dB	0	0
23	Locked	QAM 256	20	699000000 Hz	-2.0 dBmV	40.9 dB	0	0
24	Locked	QAM 256	21	705000000 Hz	-2.0 dBmV	40.4 dB	0	0
25	Locked	QAM 256	22	711000000 Hz	-2.0 dBmV	39.9 dB	0	0
26	Locked	QAM 256	23	717000000 Hz	-2.2 dBmV	40.3 dB	0	0
27	Locked	QAM 256	24	723000000 Hz	-2.2 dBmV	39.9 dB	0	0
28	Locked	QAM 256	25	729000000 Hz	-2.5 dBmV	39.9 dB	0	0
29	Locked	QAM 256	26	735000000 Hz	-2.7 dBmV	39.9 dB	0	0
30	Locked	QAM 256	27	741000000 Hz	-2.9 dBmV	39.5 dB	0	0
31	Locked	QAM 256	28	747000000 Hz	-3.2 dBmV	39.5 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	1	2560 Ksym/sec	18000000 Hz	36.0 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	24600000 Hz	36.8 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	31000000 Hz	37.3 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	37400000 Hz	37.5 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

FURRYe38 · Answer

Power and Correct and Uncorrectables look fine.&nbsp;However you have Criticals and Errors in the event log. Something that the ISP needs to review and resolve.
&nbsp;
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.&nbsp;What is the brand and model of the host wifi router connected to the modem?
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.&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://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.htmlhttps://highspeed.tips/docsis-events/
&nbsp;
The CM700 is a modem only. No built in router or wifi here.&nbsp;

FURRYe38 · Answer

"WOW was blaming the modem not correctly channeling between 2.4 and 5.0Ghz" &lt; Be sure they understand and you understand that this model modem does NOT have a built in route or wifi.&nbsp;
&nbsp;
Also those errors and criticals in the event log needs to be reviewed at addressed by the ISP.&nbsp;

FURRYe38 · Answer

Those are all ISP related events that need to be reviewed by the ISP.&nbsp;
Also you could ask them if you can use one of there modems to see if the problem continues with there modem as well. Rule out a CM modem or ISP issue.&nbsp;
&nbsp;
Let us know how it turns out.&nbsp;

Ted2022 · Answer

I forgot to mention, WOWWAY tech support told me to contact the modem manufacturer to change 2.4Ghz and 5 Ghz channels.&nbsp;Does this mean anything to you guys?&nbsp;Thanks!&nbsp;

Ted2022 · Answer

Thanks for your reply!&nbsp;The host wifi router connected to the modem is Deco AC1300. I will need to replace the cable between the modem and the router with CAT6.&nbsp;Regarding the connection up to the modem, I need to check with WOW.&nbsp;WOW was blaming the modem not correctly channeling between 2.4 and 5.0Ghz, but I will check with them again.&nbsp;&nbsp;Turning off and on the modem I have tried but I still get this issue...&nbsp;&nbsp;Sep 11 2022 14:02:29Critical (3)No Ranging Response received - T3 time-outSep 12 2022 17:11:43Error (4)DHCP RENEW WARNING - Field invalid in response v4 option&nbsp;Thank you again for your reply and guidance!&nbsp;

Forum Discussion

CM700 in and out connection issue

10 Replies

Sep 11 2022 14:02:29	Critical (3)	No Ranging Response received - T3 time-out
Sep 12 2022 17:11:43	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option