cm1150 issue with emta event log causing modem to reboot

Question

I find it hard to believe that Netgear still has yet to admit their cm1150 devices all reboot when a user simply tries to view the emta event log under advanced.

I can reproduce this on demand since the modem was purchased and after more than 3 years it is still occuring i found another thread from 3-20-24 where that person said netgear support is working on the fix and when this happened i said to myself i will just make a note not to look at that log but today the device was rebooting on its own and i bet there are other issues that can cause this.

i meant to call a few years ago when i told the comcast folks about it and they said i would need to call netgear since i own it.

Netgear please confirm this issue is being worked on and provide the latest firmware version available.

I am currently runinng

Firmware Version

V4.12.04

thanks

FURRYe38 · Answer

Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router

Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.
What is the brand and model of the host wifi router connected to the modem?

jimohare · Answer

been a CCNP for 25 years and have a cat 8 cable connected.

There is no doubt that the device has a bug and there is not newer firmware since I first discovered the issue.

as soon as you navigate to Advanced

Administration

then click on the link for

EMTA Event Log

the device simply reboots!

I was simply asking if any other NETGEAR users with the same model device can confirm this happens when they do the same?

Typically Xfinity will update this device when you rent it but i bought mine so I feel like Netgear owes me an explanation as to how they never tested the links on their product?

I am about to stop using netgear because of the router i bought my son r10000

I use the r9000 for my home and thats connected to the cm1150 and while i liked that router enough to buy it for my other homes it seems to get wiped and i am starting to think hackers are somehow getting into it and factory resetting it...but thats not this post...i am sim0ply ticked that years after i discovered this flaw in the cm1150 i see another post that netgear knows about it back then and then no more replies!

why is this not fixed yet?

the device can be up for months and then as soon as you click on the link for the emta event log it reboots!

I would bet a million dollars on it so thats how sure i am it is not anything in my setup or environment or cables or the power supply or well you get my drift.

DOCSIS® 3.1 Cable Modem (CM1150V)

would like netgear to tell me if they know about this and if they intend to fix it.

jimohare · Answer

Frequency start ValueThis 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&nbsp;Startup ProcedureProcedureStatusCommentAcquire Downstream Channel495000000 HzLockedConnectivity StateOKOperationalBoot StateOKOperationalSecurityEnabledBPI+IP Provisioning ModeHonor MDDhonorMdd(4)&nbsp;Downstream Bonded ChannelsChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables1LockedQAM25620495000000 Hz-2.6 dBmV43.2 dB002LockedQAM2564399000000 Hz-1.8 dBmV43.8 dB003LockedQAM2565405000000 Hz-1.9 dBmV43.6 dB004LockedQAM2566411000000 Hz-1.8 dBmV43.7 dB005LockedQAM2567417000000 Hz-1.7 dBmV43.6 dB006LockedQAM2568423000000 Hz-1.7 dBmV43.7 dB007LockedQAM2569429000000 Hz-1.6 dBmV43.8 dB008LockedQAM25610435000000 Hz-1.4 dBmV43.8 dB009LockedQAM25611441000000 Hz-1.7 dBmV43.7 dB0010LockedQAM25612447000000 Hz-2 dBmV43.5 dB0011LockedQAM25613453000000 Hz-2.2 dBmV43.5 dB0012LockedQAM25614459000000 Hz-3.1 dBmV43 dB0013LockedQAM25615465000000 Hz-3.8 dBmV42.6 dB0014LockedQAM25616471000000 Hz-3.8 dBmV42.6 dB0015LockedQAM25617477000000 Hz-3.2 dBmV42.8 dB0016LockedQAM25618483000000 Hz-2.8 dBmV43.1 dB0017LockedQAM25619489000000 Hz-2.5 dBmV43.1 dB0018LockedQAM25621507000000 Hz-2.8 dBmV42.9 dB0019LockedQAM25622513000000 Hz-2.6 dBmV43.1 dB0020LockedQAM25623519000000 Hz-2.6 dBmV43 dB0021LockedQAM25624525000000 Hz-2.2 dBmV43.3 dB0022LockedQAM25625531000000 Hz-2 dBmV43.3 dB0023LockedQAM25626537000000 Hz-2.5 dBmV43 dB0024LockedQAM25627543000000 Hz-2.9 dBmV42.8 dB0025LockedQAM25628549000000 Hz-3 dBmV42.8 dB0026LockedQAM25629555000000 Hz-2.8 dBmV42.7 dB0027LockedQAM25630561000000 Hz-2.8 dBmV42.6 dB0028LockedQAM25631567000000 Hz-2.5 dBmV42.9 dB0029LockedQAM25632573000000 Hz-2.3 dBmV42.5 dB0030LockedQAM25633579000000 Hz-2.6 dBmV42.5 dB0031LockedQAM25634585000000 Hz-2.8 dBmV42.6 dB0032Not LockedUnknown00 Hz0.0 dBmV0.0 dB00&nbsp;Upstream Bonded ChannelsChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower1LockedATDMA12560 Ksym/sec10400000 Hz46.3 dBmV2LockedATDMA25120 Ksym/sec16400000 Hz46.3 dBmV3LockedATDMA35120 Ksym/sec22800000 Hz46.3 dBmV4LockedATDMA45120 Ksym/sec29200000 Hz46.5 dBmV5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV&nbsp;Downstream OFDM ChannelsChannelLockStatusModulation /Profile IDChannelIDFrequencyPowerSNR /MERActive SubcarrierNumber RangeUnerroredCodewordsCorrectableCodewordsUncorrectableCodewords1Locked0 ,1 ,2 ,348722000000 Hz-3.0 dBmV41.5 dB928 ~ 3167102301940371009403358863142Not Locked000 Hz0 dBmV0.0 dB0 ~ 4095000&nbsp;Upstream OFDMA ChannelsChannelLock StatusModulation / Profile IDChannel IDFrequencyPower1Not Locked000 Hz0 dBmV2Not Locked000 Hz0 dBmV

FURRYe38 · Answer

Lets try something, disconnect the external router and ISP signal coax line from the CM modem. Press the reset button for 15 seconds then release. With one ethernet connected PC to the back of the CM modem, give 2 minutes then log into the modems web page at 192.168.100.1. Try the Event Log selection. Does the modem reboot here or does it display something?&nbsp;

Forum Discussion

cm1150 issue with emta event log causing modem to reboot

4 Replies

Procedure	Status	Comment
Acquire Downstream Channel	495000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enabled	BPI+
IP Provisioning Mode	Honor MDD	honorMdd(4)

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	20	495000000 Hz	-2.6 dBmV	43.2 dB	0	0
2	Locked	QAM256	4	399000000 Hz	-1.8 dBmV	43.8 dB	0	0
3	Locked	QAM256	5	405000000 Hz	-1.9 dBmV	43.6 dB	0	0
4	Locked	QAM256	6	411000000 Hz	-1.8 dBmV	43.7 dB	0	0
5	Locked	QAM256	7	417000000 Hz	-1.7 dBmV	43.6 dB	0	0
6	Locked	QAM256	8	423000000 Hz	-1.7 dBmV	43.7 dB	0	0
7	Locked	QAM256	9	429000000 Hz	-1.6 dBmV	43.8 dB	0	0
8	Locked	QAM256	10	435000000 Hz	-1.4 dBmV	43.8 dB	0	0
9	Locked	QAM256	11	441000000 Hz	-1.7 dBmV	43.7 dB	0	0
10	Locked	QAM256	12	447000000 Hz	-2 dBmV	43.5 dB	0	0
11	Locked	QAM256	13	453000000 Hz	-2.2 dBmV	43.5 dB	0	0
12	Locked	QAM256	14	459000000 Hz	-3.1 dBmV	43 dB	0	0
13	Locked	QAM256	15	465000000 Hz	-3.8 dBmV	42.6 dB	0	0
14	Locked	QAM256	16	471000000 Hz	-3.8 dBmV	42.6 dB	0	0
15	Locked	QAM256	17	477000000 Hz	-3.2 dBmV	42.8 dB	0	0
16	Locked	QAM256	18	483000000 Hz	-2.8 dBmV	43.1 dB	0	0
17	Locked	QAM256	19	489000000 Hz	-2.5 dBmV	43.1 dB	0	0
18	Locked	QAM256	21	507000000 Hz	-2.8 dBmV	42.9 dB	0	0
19	Locked	QAM256	22	513000000 Hz	-2.6 dBmV	43.1 dB	0	0
20	Locked	QAM256	23	519000000 Hz	-2.6 dBmV	43 dB	0	0
21	Locked	QAM256	24	525000000 Hz	-2.2 dBmV	43.3 dB	0	0
22	Locked	QAM256	25	531000000 Hz	-2 dBmV	43.3 dB	0	0
23	Locked	QAM256	26	537000000 Hz	-2.5 dBmV	43 dB	0	0
24	Locked	QAM256	27	543000000 Hz	-2.9 dBmV	42.8 dB	0	0
25	Locked	QAM256	28	549000000 Hz	-3 dBmV	42.8 dB	0	0
26	Locked	QAM256	29	555000000 Hz	-2.8 dBmV	42.7 dB	0	0
27	Locked	QAM256	30	561000000 Hz	-2.8 dBmV	42.6 dB	0	0
28	Locked	QAM256	31	567000000 Hz	-2.5 dBmV	42.9 dB	0	0
29	Locked	QAM256	32	573000000 Hz	-2.3 dBmV	42.5 dB	0	0
30	Locked	QAM256	33	579000000 Hz	-2.6 dBmV	42.5 dB	0	0
31	Locked	QAM256	34	585000000 Hz	-2.8 dBmV	42.6 dB	0	0
32	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	2560 Ksym/sec	10400000 Hz	46.3 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	16400000 Hz	46.3 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	22800000 Hz	46.3 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	29200000 Hz	46.5 dBmV
5	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
6	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
7	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV

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	48	722000000 Hz	-3.0 dBmV	41.5 dB	928 ~ 3167	10230194037	10094033588	6314
2	Not Locked	0	0	0 Hz	0 dBmV	0.0 dB	0 ~ 4095	0	0	0

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