CM2050V needs daily power cycling

I've had this modem for about a week. I noticed right away that pages were taking a while to load and within a couple of days, I had to power cycle the modem because I had no connection. This happens...

Chellen71

Aspirant

Sep 16, 2024

Cable Connection

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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

Startup Procedure

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	4	411000000 Hz	-8.0 dBmV	40.9 dB	0	0
2	Locked	QAM256	1	393000000 Hz	-7.7 dBmV	41.3 dB	0	0
3	Locked	QAM256	2	399000000 Hz	-7.8 dBmV	41.2 dB	0	0
4	Locked	QAM256	3	405000000 Hz	-8.1 dBmV	41.0 dB	0	0
5	Locked	QAM256	5	417000000 Hz	-8.1 dBmV	41.0 dB	535	1427
6	Locked	QAM256	6	423000000 Hz	-8.4 dBmV	40.8 dB	0	0
7	Locked	QAM256	7	429000000 Hz	-8.7 dBmV	40.5 dB	0	0
8	Locked	QAM256	8	435000000 Hz	-9.1 dBmV	40.2 dB	0	0
9	Locked	QAM256	9	441000000 Hz	-9.2 dBmV	40.1 dB	0	0
10	Locked	QAM256	10	447000000 Hz	-9.1 dBmV	40.2 dB	0	0
11	Locked	QAM256	11	453000000 Hz	-9.5 dBmV	39.9 dB	0	0
12	Locked	QAM256	12	459000000 Hz	-9.7 dBmV	39.7 dB	0	0
13	Locked	QAM256	13	465000000 Hz	-9.4 dBmV	39.9 dB	0	0
14	Locked	QAM256	14	471000000 Hz	-9.3 dBmV	40.0 dB	0	0
15	Locked	QAM256	15	477000000 Hz	-9.2 dBmV	40.1 dB	0	0
16	Locked	QAM256	16	483000000 Hz	-9.2 dBmV	40.0 dB	0	0
17	Locked	QAM256	17	489000000 Hz	-9.4 dBmV	39.0 dB	0	0
18	Locked	QAM256	18	495000000 Hz	-9.1 dBmV	39.6 dB	0	0
19	Locked	QAM256	19	501000000 Hz	-9.3 dBmV	40.0 dB	0	0
20	Locked	QAM256	20	507000000 Hz	-9.7 dBmV	39.7 dB	0	0
21	Locked	QAM256	21	513000000 Hz	-10.0 dBmV	39.6 dB	0	0
22	Locked	QAM256	22	519000000 Hz	-10.4 dBmV	39.1 dB	0	0
23	Locked	QAM256	23	525000000 Hz	-10.6 dBmV	34.8 dB	0	0
24	Locked	QAM256	24	531000000 Hz	-10.8 dBmV	38.6 dB	0	0
25	Locked	QAM256	25	537000000 Hz	-11.3 dBmV	38.4 dB	0	0
26	Locked	QAM256	26	543000000 Hz	-11.5 dBmV	38.2 dB	0	0
27	Locked	QAM256	27	549000000 Hz	-11.4 dBmV	38.3 dB	0	0
28	Locked	QAM256	28	555000000 Hz	-11.2 dBmV	35.4 dB	0	0
29	Locked	QAM256	29	561000000 Hz	-11.0 dBmV	38.2 dB	0	0
30	Locked	QAM256	30	567000000 Hz	-10.9 dBmV	35.5 dB	0	0
31	Locked	QAM256	31	573000000 Hz	-11.0 dBmV	36.6 dB	0	0
32	Locked	QAM256	32	579000000 Hz	-10.8 dBmV	37.9 dB	0	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120	16400000 Hz	46.8 dBmV
2	Locked	ATDMA	2	5120	22800000 Hz	46.8 dBmV
3	Locked	ATDMA	3	5120	29200000 Hz	47.3 dBmV
4	Locked	ATDMA	4	5120	35600000 Hz	47.8 dBmV
5	Not Locked	Unknown	0	0	0 Hz	0.0 dBmV
6	Not Locked	Unknown	0	0	0 Hz	0.0 dBmV
7	Not Locked	Unknown	0	0	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0	0 Hz	0.0 dBmV

Downstream OFDM Channels

Channel	Lock Status	Profile ID	Channel ID	Frequency	Power	SNR / MER	Active Subcarrier Number Range	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	0 ,1 ,2 ,3	193	690000000 Hz	-12.0 dBmV	36.8 dB	508 ~ 3587	362195004	361701622	530
2	Locked	0 ,1 ,2 ,3	194	957000000 Hz	-15.3 dBmV	34.1 dB	148 ~ 3947	370179017	99678973	267543483

Upstream OFDMA Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Not Locked	0	0	0 Hz	0 dBmV
2	Not Locked	0	0	0 Hz	0 dBmV

FURRYe38

Guru - Experienced User

Sep 16, 2024

So just one PC connected to the back of the CM modem?

Power levels are too low:

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

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://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/

Chellen71
Aspirant
Sep 16, 2024
Yes, just a desktop. When you say power levels, what power levels, specifically?
- Kitsap
  Master
  Sep 16, 2024
  Chellen71 wrote:
  Yes, just a desktop. When you say power levels, what power levels, specifically?
  See attached.
  
  For reference see the first two sentences of this article: https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
  
  The ideal level is around +1 dBmV. Normally the power level will vary no more than 4 or 5 (high to low) from the lowest frequency channel to the highest frequency channel.
  
  Your values for the downstream bonded channels and the downstream OFDM are low. If the power levels are low like yours, and you do not have any issues with the coax cable, the ISP will have to make adjustments at the street level connection.

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CM2050V needs daily power cycling