Netgear CM1150V => Event Message - Started Unicast Maintenance Ranging - No Response received

Home Network keeps dropping. Cable modem = Netgear CM1150V

Here is the event log and the up / down data.

Time	Priority	Description
Tue Jul 27 18:19:46 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 17:53:21 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 17:52:55 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 17:38:28 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 17:07:33 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 17:06:59 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:40:47 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 5; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:40:34 2021	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:40:33 2021	Notice (6)	TLV-11 - unrecognized OID;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:40:24 2021	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
Tue Jul 27 15:40:08 2021	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:40:06 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:42 2021	Critical (3)	16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:42 2021	Critical (3)	Ranging Request Retries exhausted;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:42 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:29 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 7; Chan ID: 77 78 79; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:23 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:05 2021	Critical (3)	16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:05 2021	Critical (3)	Ranging Request Retries exhausted;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:38:05 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:37:58 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 7; Chan ID: 77 78 79; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:37:54 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:37:28 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 7; Chan ID: 77 78 79; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:37:20 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:57 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 7; Chan ID: 77 78 79; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:54 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:27 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 7; Chan ID: 77 78 79; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:24 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:08 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:08 2021	Critical (3)	16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:08 2021	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:08 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:03 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:02 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:00 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:36:00 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:35:25 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:35:19 2021	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:34:56 2021	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;
Tue Jul 27 15:34:32 2021	Notice (6)	CM-STATUS message sent. Event Type Code: 7; Chan ID: 77 79; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[Edited: "Personal Information"];CMTS-MAC=[Edited: "Personal Information"];CM-QOS=1.1;CM-VER=3.1;

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

Procedure	Status	Comment
Acquire Downstream Channel	525000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enabled	BPI+
IP Provisioning Mode	Honor MDD	honorMdd(4)

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	13	525000000 Hz	-2.2 dBmV	41 dB	103	0
2	Locked	QAM256	10	507000000 Hz	-2.2 dBmV	41 dB	599	0
3	Locked	QAM256	11	513000000 Hz	-2.3 dBmV	40.9 dB	312	16
4	Locked	QAM256	12	519000000 Hz	-2.2 dBmV	41 dB	241	33
5	Locked	QAM256	14	531000000 Hz	-2 dBmV	41.2 dB	163	28
6	Locked	QAM256	15	537000000 Hz	-2.2 dBmV	41 dB	190	1
7	Locked	QAM256	16	543000000 Hz	-2.5 dBmV	41 dB	140	0
8	Locked	QAM256	17	549000000 Hz	-3.2 dBmV	40.6 dB	137	0
9	Locked	QAM256	18	555000000 Hz	-4 dBmV	40.2 dB	895	831
10	Locked	QAM256	19	561000000 Hz	-4.5 dBmV	40 dB	1251	1120
11	Locked	QAM256	20	567000000 Hz	-4.8 dBmV	39.7 dB	1454	1033
12	Locked	QAM256	21	573000000 Hz	-5 dBmV	39.7 dB	943	293
13	Locked	QAM256	22	579000000 Hz	-5 dBmV	39.8 dB	216	34
14	Locked	QAM256	23	585000000 Hz	-4.8 dBmV	39.9 dB	70	0
15	Locked	QAM256	24	591000000 Hz	-4.7 dBmV	39.9 dB	56	0
16	Locked	QAM256	26	597000000 Hz	-4.5 dBmV	39.8 dB	72	0
17	Locked	QAM256	27	603000000 Hz	-4.2 dBmV	40 dB	50	0
18	Locked	QAM256	28	609000000 Hz	-4.3 dBmV	40.1 dB	56	0
19	Locked	QAM256	29	615000000 Hz	-4.3 dBmV	40.1 dB	95	0
20	Locked	QAM256	30	621000000 Hz	-4.1 dBmV	40 dB	75	0
21	Locked	QAM256	31	627000000 Hz	-3.8 dBmV	40 dB	73	0
22	Locked	QAM256	32	633000000 Hz	-3.6 dBmV	40.3 dB	436	131
23	Locked	QAM256	33	639000000 Hz	-3.4 dBmV	40.4 dB	607	332
24	Locked	QAM256	34	645000000 Hz	-3 dBmV	40.7 dB	399	164
25	Locked	QAM256	35	651000000 Hz	-2.8 dBmV	40.7 dB	119	0
26	Locked	QAM256	36	657000000 Hz	-2.8 dBmV	40.6 dB	57	0
27	Locked	QAM256	37	663000000 Hz	-2.6 dBmV	40.7 dB	88	0
28	Locked	QAM256	38	669000000 Hz	-2.3 dBmV	40.8 dB	331	36
29	Locked	QAM256	39	675000000 Hz	-1.8 dBmV	40 dB	954	491
30	Locked	QAM256	40	681000000 Hz	-1.5 dBmV	41.1 dB	35	0
31	Locked	QAM256	41	687000000 Hz	-0.9 dBmV	41.3 dB	2214	1534
32	Not Locked	Unknown	0	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	77	5120 Ksym/sec	36500000 Hz	49.8 dBmV
2	Locked	ATDMA	78	5120 Ksym/sec	30100000 Hz	49.5 dBmV
3	Locked	ATDMA	79	5120 Ksym/sec	23700000 Hz	48.8 dBmV
4	Locked	ATDMA	80	5120 Ksym/sec	17300000 Hz	49.8 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

Downstream OFDM Channels

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	25	693000000 Hz	0.0 dBmV	41.0 dB	1108 ~ 2987	8137451330	7701444500	33517
2	Not Locked	0	0	0 Hz	0 dBmV	0.0 dB	0 ~ 4095	0	0	0

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

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Responses

JMRPatsFan

New Poster

•

6 Messages

4 years ago

Adding to my original post

1. Firmware on the CM1150V is 4.02.02

2. There is one splitter before the modem: Extreme Broadband Engineering BDS102H

Thank you

EG

Expert

•

111.5K Messages

4 years ago

Is this with a WiFi connection ? If so, for a test, does a computer / device that is hardwired directly to the router / gateway device with an ethernet cable have the same problem ?

With this test, we are trying to isolate this from being either a WiFi-only problem or a problem with the general connection to the Comcast system which would of course affect both. It's a good first step of troubleshooting before proceeding any further.

JMRPatsFan

New Poster

•

6 Messages

4 years ago

Thank you for replying.

Yes, the problem exists for the devices hard wired & connected via Wifi. The problem is intermittent. As of right now, everything is working fine. When they occur, my network still shows up as connected, however, I get an error message saying the internet is not available.

This is my setup: CM1150V is connected to a MikroTik RB4011 router. The router then distributes to two desktops (via ethernet) & to two wireless access points for 2 separate networks, both connected via ethernet. One is an Orbi RBR50, which is configured as an access point and the other is a Netgear AX1800 access point. Also, the Orbi setup has two RBS50 connected to the RBR50 via ethernet.

I have attempted to direct connect to the cable modem, however since the issue has been intermittent, I have yet been able to recreate.

EG

Expert

•

111.5K Messages

4 years ago

O/k, the upstream power is on the high side and it may be intermittently fluctuating even higher to out of spec levels. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, kinks, sharp bends, etc.

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.

Good luck with it !

JMRPatsFan

New Poster

•

6 Messages

4 years ago

Thanks! The only splitter on the line before this is an Extreme Broadband Engineering BDS102H. It is rated 5-1000 MHZ, however I have no idea of the age, might be 10+ years old. It is indoors, but I will disconnect and check for corrosion / oxidation. Appreciate the input. thank again!

EG

Expert

•

111.5K Messages

4 years ago

Quite welcome ! Is it a two-way splitter or a larger one ?

JMRPatsFan

New Poster

•

6 Messages

@EG

It is a two-way.

4 years ago

EG

Expert

•

111.5K Messages

O/k that's fine. So if nothing applies, then you'll need a tech out to investigate as was stated.

Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home.

Good luck !

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
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4 years ago

Your Home Network

JMRPatsFan

Netgear CM1150V => Event Message - Started Unicast Maintenance Ranging - No Response received

JMRPatsFan

EG

JMRPatsFan

EG

JMRPatsFan

EG

JMRPatsFan

EG

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