Forum Discussion

Aspirant

Sep 07, 2024

Modem....CM10000v2

So is my modem done, or just need reprogrammed? Its dropping internet..... Time Priority Description 2024-09-06, 19:25:34 Warning (5) DBC-REQ Mismatch Between Calculated Value for P1.6...

the87hyper

Aspirant

Sep 07, 2024

arting Frequency

<tabindex=-1>Startup Procedure</tabindex=-1>

Procedure	Status	Comment
Acquire Downstream Channel	645000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enable	BPI+
IP Provisioning Mode	Honor MDD	IPv4 only

<tabindex=-1>Downstream Bonded Channels</tabindex=-1>

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR / MER	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	QAM256	12	645000000 Hz	9.0 dBmV	40.9 dB	1471353494	0	0
2	Locked	QAM256	3	591000000 Hz	7.6 dBmV	40.1 dB	1470640845	0	0
3	Locked	QAM256	4	597000000 Hz	7.7 dBmV	40.2 dB	1470644264	0	0
4	Locked	QAM256	5	603000000 Hz	8.1 dBmV	40.3 dB	1470648586	0	0
5	Locked	QAM256	6	609000000 Hz	8.1 dBmV	40.3 dB	1470652597	0	0
6	Locked	QAM256	7	615000000 Hz	8.5 dBmV	40.6 dB	1470656237	0	0
7	Locked	QAM256	8	621000000 Hz	8.5 dBmV	40.6 dB	1470660257	0	0
8	Locked	QAM256	9	627000000 Hz	8.5 dBmV	40.7 dB	1470664169	0	0
9	Locked	QAM256	10	633000000 Hz	8.6 dBmV	40.5 dB	1470667908	0	0
10	Locked	QAM256	11	639000000 Hz	8.8 dBmV	40.9 dB	1470671105	0	0
11	Locked	QAM256	13	651000000 Hz	9.1 dBmV	41.0 dB	1470674878	0	0
12	Locked	QAM256	14	657000000 Hz	9.0 dBmV	41.2 dB	1470679062	0	0
13	Locked	QAM256	15	663000000 Hz	9.2 dBmV	41.2 dB	1470682099	0	0
14	Locked	QAM256	16	669000000 Hz	8.8 dBmV	41.1 dB	1470685628	0	0
15	Locked	QAM256	17	675000000 Hz	9.3 dBmV	40.8 dB	1470683875	0	0
16	Locked	QAM256	18	681000000 Hz	9.3 dBmV	41.3 dB	1470687664	0	0
17	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
18	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
19	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
20	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
21	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
22	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
23	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
24	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
25	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
26	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
27	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
28	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
29	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
30	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
31	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
32	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0

<tabindex=-1>Upstream Bonded Channels</tabindex=-1>

Channel	Lock Status	Modulation	Channel ID	Frequency	Power
1	Locked	ATDMA	1	17300000 Hz	37.8 dBmV
2	Locked	ATDMA	2	23700000 Hz	37.8 dBmV
3	Not Locked	Unknown	0	0 Hz	0.0 dBmV
4	Not Locked	Unknown	0	0 Hz	0.0 dBmV
5	Not Locked	Unknown	0	0 Hz	0.0 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

<tabindex=-1>Downstream OFDM Channels</tabindex=-1>

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, 2, 3	159	276000000 Hz	3.7 dBmV	35.8 dB	886 ~ 3209	7043718667	1276189869	0
2	Locked	0, 1, 2, 3	160	810000000 Hz	9.3 dBmV	33.8 dB	166 ~ 3929	11434663251	1783583421	0

<tabindex=-1>Upstream OFDMA Channels</tabindex=-1>

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Locked	3, 4, 9, 10, 11, 12, 13	3	23700000 Hz	33.3 dBmV
2	Not Locked	3, 4, 9, 10, 11, 12, 13	0	0 Hz	0.0 dBmV

the87hyper

Aspirant

Sep 07, 2024

2024-09-07, 18:02:51	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 18:02:51	Notice (6)	US profile assignment change. US Chan ID: 8; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:57:46	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:57:46	Notice (6)	US profile assignment change. US Chan ID: 8; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:42:30	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:42:30	Notice (6)	US profile assignment change. US Chan ID: 8; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:37:26	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:37:26	Notice (6)	US profile assignment change. US Chan ID: 8; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:32:24	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:32:24	Notice (6)	US profile assignment change. US Chan ID: 8; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:17:13	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;
2024-09-07, 17:17:13	Notice (6)	US profile assignment change. US Chan ID: 8; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=6c:cd:d6:94:14:5c;CMTS-MAC=00:38:df:9b:4e:3d;CM-QOS=1.1;CM-VER=3.1;

FURRYe38
Guru - Experienced User
Sep 08, 2024
Power a bit too high for the download channels:

https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router

Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.

Have the ISP check the signal and line quality UP to the modem. 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 your using good quality RG6 coax cable up to the modem.
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
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#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/
- the87hyper
  Aspirant
  Sep 08, 2024
  Thank you
  - FURRYe38
    Guru - Experienced User
    Sep 09, 2024
    👍