CM1000 How to stop daily reboot

[BennyBenX]

Hello I need help troubleshooting why my modem restarts itself every day at a specific time. I'm not sure if it's because of a DHCP lease time or something else. Here are some log messages on my modem.

I've already tried factory resetting the modem and the problem still occurs.

Thanks.

Cable Information

Hardware Version	2.02
Firmware Version	V7.01.01
Cable Modem Serial Number	4L0585WA00F59
CM certificate	Installed
CM MAC	08:36:c9:a5:8f:28

2020-08-03, 03:24:22	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2020-08-03, 03:22:09	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:01:5c:ac:0c:49;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=08:36:c9:a5:8f:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

Frequency start Value

This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.

Starting Frequency

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

Procedure	Status	Comment
Acquire Downstream Channel	441000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enable	BPI+
IP Provisioning Mode	Honor MDD	IPv6 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	1	441000000 Hz	0.8 dBmV	40.9 dB	1274854132	0	0
2	Locked	QAM256	2	453000000 Hz	0.7 dBmV	40.8 dB	1273625124	0	0
3	Locked	QAM256	3	459000000 Hz	1.0 dBmV	40.9 dB	1273615915	0	0
4	Locked	QAM256	4	465000000 Hz	1.9 dBmV	41.4 dB	1273631875	0	0
5	Locked	QAM256	5	471000000 Hz	2.4 dBmV	41.4 dB	1273635629	0	0
6	Locked	QAM256	6	477000000 Hz	3.2 dBmV	41.7 dB	1273640130	0	0
7	Locked	QAM256	7	483000000 Hz	3.3 dBmV	41.7 dB	1273643389	0	0
8	Locked	QAM256	8	489000000 Hz	3.8 dBmV	42.1 dB	1273647312	0	0
9	Locked	QAM256	9	495000000 Hz	4.0 dBmV	42.2 dB	1273652891	0	0
10	Locked	QAM256	10	501000000 Hz	4.3 dBmV	42.1 dB	1273656043	0	0
11	Locked	QAM256	11	507000000 Hz	4.5 dBmV	42.3 dB	1273660222	0	0
12	Locked	QAM256	12	513000000 Hz	4.6 dBmV	42.4 dB	1273663449	0	0
13	Locked	QAM256	13	519000000 Hz	4.3 dBmV	42.1 dB	1273667499	0	0
14	Locked	QAM256	14	525000000 Hz	4.0 dBmV	41.7 dB	1273671538	0	0
15	Locked	QAM256	15	531000000 Hz	3.4 dBmV	41.4 dB	1273675272	0	0
16	Locked	QAM256	16	537000000 Hz	3.3 dBmV	41.4 dB	1273679172	0	0
17	Locked	QAM256	17	543000000 Hz	3.8 dBmV	41.6 dB	1273690449	0	0
18	Locked	QAM256	18	555000000 Hz	4.2 dBmV	41.7 dB	1273694924	0	0
19	Locked	QAM256	19	561000000 Hz	4.1 dBmV	41.5 dB	1273697669	0	0
20	Locked	QAM256	20	567000000 Hz	3.7 dBmV	41.4 dB	1273702046	0	0
21	Locked	QAM256	21	573000000 Hz	3.8 dBmV	41.5 dB	1273705832	0	0
22	Locked	QAM256	22	579000000 Hz	3.9 dBmV	41.4 dB	1273709807	0	0
23	Locked	QAM256	23	585000000 Hz	3.7 dBmV	41.2 dB	1273712729	0	0
24	Locked	QAM256	24	591000000 Hz	3.8 dBmV	41.2 dB	1273716821	0	0
25	Locked	QAM256	25	597000000 Hz	3.7 dBmV	41.1 dB	1273721241	0	0
26	Locked	QAM256	26	603000000 Hz	3.3 dBmV	41.0 dB	1273719949	0	0
27	Locked	QAM256	27	609000000 Hz	3.5 dBmV	41.0 dB	1273722250	0	0
28	Locked	QAM256	28	615000000 Hz	3.4 dBmV	40.8 dB	1273723423	0	0
29	Locked	QAM256	30	621000000 Hz	3.5 dBmV	40.6 dB	1273722148	0	0
30	Locked	QAM256	31	627000000 Hz	3.3 dBmV	40.6 dB	1273703685	0	0
31	Locked	QAM256	32	633000000 Hz	3.9 dBmV	41.0 dB	1273703851	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	36500000 Hz	53.0 dBmV
2	Locked	ATDMA	2	30100000 Hz	53.5 dBmV
3	Locked	ATDMA	3	23700000 Hz	53.3 dBmV
4	Locked	ATDMA	4	17300000 Hz	53.0 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

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<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	29	693000000 Hz	5.2 dBmV	38.8 dB	1108 ~ 2987	213681973	199136110	0
2	Not Locked	0	0	0 Hz	-0.7 dBmV	0.0 dB	0 ~ 4095	0	0	0

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

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

[Tbones3141]

Same issue just started. I have the same firmware. What gives? Anyone got ideas?

[FURRYe38]

Any progress on this? 

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@BennyBenX wrote:

Hello I need help troubleshooting why my modem restarts itself every day at a specific time. I'm not sure if it's because of a DHCP lease time or something else. Here are some log messages on my modem.

I've already tried factory resetting the modem and the problem still occurs.

Thanks.

[FURRYe38]

Have the ISP check the signal and line quality UP to the modem. 
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. 

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@Tbones3141 wrote:
Same issue just started. I have the same firmware. What gives? Anyone got ideas?

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[vkdelta]

extremely high Upstream power. It is blasting at 53dBmV right now which is very high.

do you have any splitters?

If not, you should request ISP to reduce the US attenuation.