New Contributor

4 years ago

Daily Dropped Internet Connection

Good morning folks. I have been having an issue with my Cox service for quite sometime. The internet will just "vanish", but the Eth0 & WiFi will continue to work fine. At first, thought it was our router, so purchased a TP-Link AX6000. Still doing the same thing. So, upgraded the router. Cox had mentioned that we would need to upgrade to a DOCSIS v3.1 anyways, so why not. Purchased the CM1000v2 and still having the same results. All the lights stay on and functioning, which is why I originally thought it was the router. Only way to fix it is to power cycle the modem and works fine for a couple days, then same issues all over again.

I had Cox Contractor out last month, and he replaced the line from the Ped (only about 10 yards from our house) to the house. Changed the RG-6 fittings on the line that goes in to the house for approx. 5 feet to the modem, straight from the box outside that wall.

I had to reboot the modem about an hour ago because the internet vanished again. Here are the details of what the modem connection currently looks like while running.

We are on the Cox Gigablast Plan just FYI. Below is the Firmware Info, Connection & Event Logs.

Hardware Version	2.02
Firmware Version	V6.01.07
Cable Modem Serial Number	5UY10CWSxxxxx
CM certificate	Installed
CM MAC	94:a6:7e:0c:xx:xx

Time

Priority

Description

2022-04-23, 08:28:45

Notice (6)

CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 08:28:26

Notice (6)

CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 08:11:47

Notice (6)

CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 08:10:51

Notice (6)

CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:50

Notice (6)

CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:39

Warning (5)

Dynamic Range Window violation

2022-04-23, 07:35:39

Warning (5)

RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:38

Warning (5)

Dynamic Range Window violation

2022-04-23, 07:35:38

Warning (5)

RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:38

Warning (5)

Dynamic Range Window violation

2022-04-23, 07:35:38

Warning (5)

RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:34

Notice (6)

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:28

Notice (6)

TLV-11 - unrecognized OID;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-23, 07:35:28

Warning (5)

DHCP WARNING - Non-critical field invalid in response ;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Notice (6)

Honoring MDD; IP provisioning mode = IPv4

Time Not Established

Critical (3)

UCD invalid or channel unusable;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;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=94:a6:7e:0c:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

2022-04-18, 19:27:10

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-18, 19:27:09

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-04-18, 19:27:07

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

UCD invalid or channel unusable;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;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=94:a6:7e:0c:xx:xx;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=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

UCD invalid or channel unusable;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;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=94:a6:7e:0c:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:54:04

Critical (3)

Resetting the cable modem due to docsDevResetNow

Time Not Established

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

UCD invalid or channel unusable;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;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=94:a6:7e:0c:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:50:43

Critical (3)

Resetting the cable modem due to docsDevResetNow

2022-03-29, 14:42:18

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:42:16

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

No Ranging Response received - T3 time-out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

Time Not Established

Critical (3)

UCD invalid or channel unusable;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:25:26

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:25:22

Critical (3)

Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:25:05

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:25:05

Critical (3)

Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;CM-QOS=1.1;CM-VER=3.1;

2022-03-29, 14:25:01

Critical (3)

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=94:a6:7e:0c:xx:xx;CMTS-MAC=00:c1:b1:60:f7:94;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

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

Procedure	Status	Comment
Acquire Downstream Channel	903000000 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	21	903000000 Hz	15.2 dBmV	44.9 dB	179623314	0	0
2	Locked	QAM256	1	783000000 Hz	14.1 dBmV	44.8 dB	178836118	0	0
3	Locked	QAM256	2	789000000 Hz	14.4 dBmV	44.7 dB	178839710	0	0
4	Locked	QAM256	3	795000000 Hz	14.4 dBmV	44.8 dB	178843126	0	0
5	Locked	QAM256	4	801000000 Hz	14.5 dBmV	44.6 dB	178846617	0	0
6	Locked	QAM256	5	807000000 Hz	14.6 dBmV	44.7 dB	178832958	0	0
7	Locked	QAM256	6	813000000 Hz	14.6 dBmV	44.6 dB	178852888	0	0
8	Locked	QAM256	7	819000000 Hz	14.5 dBmV	44.7 dB	178858281	0	0
9	Locked	QAM256	8	825000000 Hz	14.6 dBmV	44.7 dB	178862070	0	0
10	Locked	QAM256	9	831000000 Hz	14.7 dBmV	44.6 dB	178865680	0	0
11	Locked	QAM256	10	837000000 Hz	14.7 dBmV	44.8 dB	178869501	0	0
12	Locked	QAM256	11	843000000 Hz	14.9 dBmV	44.9 dB	178873239	0	0
13	Locked	QAM256	12	849000000 Hz	15.0 dBmV	44.9 dB	178877025	0	0
14	Locked	QAM256	13	855000000 Hz	14.9 dBmV	44.8 dB	178880782	0	0
15	Locked	QAM256	14	861000000 Hz	14.9 dBmV	44.8 dB	178884915	0	0
16	Locked	QAM256	15	867000000 Hz	14.9 dBmV	44.9 dB	178888532	0	0
17	Locked	QAM256	16	873000000 Hz	14.8 dBmV	44.7 dB	178892258	0	0
18	Locked	QAM256	17	879000000 Hz	14.9 dBmV	44.9 dB	178895685	0	0
19	Locked	QAM256	18	885000000 Hz	15.0 dBmV	44.9 dB	178899440	0	0
20	Locked	QAM256	19	891000000 Hz	15.0 dBmV	45.0 dB	178903158	0	0
21	Locked	QAM256	20	897000000 Hz	15.2 dBmV	44.9 dB	178906915	0	0
22	Locked	QAM256	22	909000000 Hz	15.1 dBmV	44.8 dB	178909785	0	0
23	Locked	QAM256	23	915000000 Hz	15.1 dBmV	45.0 dB	178914503	0	0
24	Locked	QAM256	24	921000000 Hz	15.2 dBmV	44.8 dB	178918163	0	0
25	Locked	QAM256	25	927000000 Hz	15.1 dBmV	44.9 dB	178921913	0	0
26	Locked	QAM256	26	933000000 Hz	15.1 dBmV	44.8 dB	178925705	0	0
27	Locked	QAM256	27	939000000 Hz	15.1 dBmV	44.6 dB	178928403	0	0
28	Locked	QAM256	28	945000000 Hz	15.1 dBmV	44.7 dB	178932006	0	0
29	Locked	QAM256	29	951000000 Hz	15.0 dBmV	44.7 dB	178935911	0	0
30	Locked	QAM256	30	957000000 Hz	15.0 dBmV	44.6 dB	178939168	0	0
31	Locked	QAM256	31	963000000 Hz	14.9 dBmV	44.8 dB	178940446	0	0
32	Locked	QAM256	32	969000000 Hz	14.9 dBmV	44.7 dB	178959633	0	0

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

Channel	Lock Status	Modulation	Channel ID	Frequency	Power
1	Locked	ATDMA	1	16900000 Hz	38.0 dBmV
2	Locked	ATDMA	2	23500000 Hz	38.0 dBmV
3	Locked	ATDMA	3	29900000 Hz	38.0 dBmV
4	Locked	ATDMA	4	36300000 Hz	37.8 dBmV
5	Locked	ATDMA	5	60000000 Hz	38.0 dBmV
6	Locked	ATDMA	6	67000000 Hz	38.0 dBmV
7	Locked	ATDMA	7	74000000 Hz	38.5 dBmV
8	Locked	ATDMA	8	81000000 Hz	39.0 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	300000000 Hz	11.6 dBmV	32.8 dB	1108 ~ 2987	95267045	23910586	0
2	Not Locked	0	0	0 Hz	9.3 dBmV	0.0 dB	0 ~ 4095	0	0	0

<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

Current System Time: Sat Apr 23 08:41:12 2022

System Up Time: 1:06:13

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