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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

Parents
  • The SNR is low for the OFDM channel which is the 300Mhz range. I also see error in the logs about the OFDM channel. Finally I see a T4 error, which is a full reset. I would try to bypass all splitters for a day and see if a direct connection from the street to the room the modem is in helps. If not, schedule a technician.

  • Sorry, I thought I put it in the 2nd paragraph that there are no splitters or anything at all. The line goes from the Underground Ped about 5 yards outside the house, to the J-Box, which was replaced last month where there was a Cox Contractor out here. From there, only thing is a barrel connection to the 6' line that goes from the J-Box, in to the house where the modem is at.

    So all in all total, the single line which has no splitters, amps, or anything else is approx. 6 1/2 yards total in length (approx. 100').

    This modem worked perfectly fine at my old house which was also on Cox in a different city, different head end, etc., but here, it constantly continues to lock up the internet service and have to manually power cycle. The app itself that Cox has can't even communicate with the modem to reset it when it is hung.

  • - Stay tuned. Of course, they noted on the ticket to send to in-house, but it got dispatched to a contractor. He's going to see what he can find with his DOCSIS 3.1 meter, and see if he needs to send it off to maintenance or what we can do.

    Grab some more popcorn for a bit! :-)

  • but it got dispatched to a contractor.

    Well some contractors used to work for Cox, so maybe you will get lucky. Atleast he has a meter. Fingers crossed.

    Grab some more popcorn for a bit!

  •  - So this contractor dude was cool and he said did what the last one should have, instead of just replacing the line from the PED to the OPB and calling it a day.

    He confirmed that the line levels were quite high. He said for Cox, their limits are -12/+12, and when he got here, we were at +17.9 average. So he threw a small attenuator right behind the modem to start, and I can already see a significant drop in power on the locked channels, and Upstream Bonded channels have raised signal along with the ODFM channel.

    Since rebooting the modem, I now see zero correctable/uncorrectable codewords, and the OFDM has a bunch of correctable codewords, but no uncorrectable codewords. Here's the new results:

    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

    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

    Channel

    Lock Status

    Modulation

    Channel ID

    Frequency

    Power

    SNR / MER

    Unerrored Codewords

    Correctable Codewords

    Uncorrectable Codewords

    1

    Locked

    QAM256

    21

    903000000 Hz

    9.1 dBmV

    45.3 dB

    15663282

    0

    0

    2

    Locked

    QAM256

    1

    783000000 Hz

    8.6 dBmV

    45.5 dB

    9865621

    0

    0

    3

    Locked

    QAM256

    2

    789000000 Hz

    8.8 dBmV

    45.5 dB

    9870374

    0

    0

    4

    Locked

    QAM256

    3

    795000000 Hz

    8.7 dBmV

    45.4 dB

    9873891

    0

    0

    5

    Locked

    QAM256

    4

    801000000 Hz

    8.9 dBmV

    45.3 dB

    9877489

    0

    0

    6

    Locked

    QAM256

    5

    807000000 Hz

    8.8 dBmV

    45.5 dB

    9863102

    0

    0

    7

    Locked

    QAM256

    6

    813000000 Hz

    8.9 dBmV

    45.4 dB

    9883216

    0

    0

    8

    Locked

    QAM256

    7

    819000000 Hz

    8.9 dBmV

    45.3 dB

    9887604

    0

    0

    9

    Locked

    QAM256

    8

    825000000 Hz

    8.8 dBmV

    45.2 dB

    9891693

    0

    0

    10

    Locked

    QAM256

    9

    831000000 Hz

    8.9 dBmV

    45.3 dB

    9894971

    0

    0

    11

    Locked

    QAM256

    10

    837000000 Hz

    8.9 dBmV

    45.3 dB

    9899086

    0

    0

    12

    Locked

    QAM256

    11

    843000000 Hz

    9.0 dBmV

    45.3 dB

    9902685

    0

    0

    13

    Locked

    QAM256

    12

    849000000 Hz

    9.1 dBmV

    45.3 dB

    9906911

    0

    0

    14

    Locked

    QAM256

    13

    855000000 Hz

    9.2 dBmV

    45.3 dB

    9911118

    0

    0

    15

    Locked

    QAM256

    14

    861000000 Hz

    9.2 dBmV

    45.3 dB

    9914665

    0

    0

    16

    Locked

    QAM256

    15

    867000000 Hz

    9.2 dBmV

    45.4 dB

    9918661

    0

    0

    17

    Locked

    QAM256

    16

    873000000 Hz

    9.2 dBmV

    45.4 dB

    9922285

    0

    0

    18

    Locked

    QAM256

    17

    879000000 Hz

    9.2 dBmV

    45.4 dB

    9926181

    0

    0

    19

    Locked

    QAM256

    18

    885000000 Hz

    9.1 dBmV

    45.2 dB

    9929610

    0

    0

    20

    Locked

    QAM256

    19

    891000000 Hz

    9.1 dBmV

    45.3 dB

    9933234

    0

    0

    21

    Locked

    QAM256

    20

    897000000 Hz

    9.2 dBmV

    45.3 dB

    9937073

    0

    0

    22

    Locked

    QAM256

    22

    909000000 Hz

    9.2 dBmV

    45.4 dB

    9940446

    0

    0

    23

    Locked

    QAM256

    23

    915000000 Hz

    9.3 dBmV

    45.1 dB

    9944275

    0

    0

    24

    Locked

    QAM256

    24

    921000000 Hz

    9.3 dBmV

    45.0 dB

    9948378

    0

    0

    25

    Locked

    QAM256

    25

    927000000 Hz

    9.3 dBmV

    45.1 dB

    9951835

    0

    0

    26

    Locked

    QAM256

    26

    933000000 Hz

    9.3 dBmV

    45.1 dB

    9954710

    0

    0

    27

    Locked

    QAM256

    27

    939000000 Hz

    9.2 dBmV

    45.3 dB

    9958428

    0

    0

    28

    Locked

    QAM256

    28

    945000000 Hz

    9.2 dBmV

    45.0 dB

    9962054

    0

    0

    29

    Locked

    QAM256

    29

    951000000 Hz

    9.2 dBmV

    45.1 dB

    9965859

    0

    0

    30

    Locked

    QAM256

    30

    957000000 Hz

    9.2 dBmV

    45.0 dB

    9966504

    0

    0

    31

    Locked

    QAM256

    31

    963000000 Hz

    9.1 dBmV

    45.0 dB

    9969154

    0

    0

    32

    Locked

    QAM256

    32

    969000000 Hz

    9.1 dBmV

    45.0 dB

    9982749

    0

    0

    <tabindex=-1>Upstream Bonded Channels

    Channel

    Lock Status

    Modulation

    Channel ID

    Frequency

    Power

    1

    Locked

    ATDMA

    1

    16900000 Hz

    44.3 dBmV

    2

    Locked

    ATDMA

    2

    23500000 Hz

    44.5 dBmV

    3

    Locked

    ATDMA

    3

    29900000 Hz

    44.5 dBmV

    4

    Locked

    ATDMA

    4

    36300000 Hz

    44.5 dBmV

    5

    Locked

    ATDMA

    5

    60000000 Hz

    44.3 dBmV

    6

    Locked

    ATDMA

    6

    67000000 Hz

    44.5 dBmV

    7

    Locked

    ATDMA

    7

    74000000 Hz

    44.8 dBmV

    8

    Locked

    ATDMA

    8

    81000000 Hz

    45.8 dBmV

    <tabindex=-1>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

    159

    300000000 Hz

    6.1 dBmV

    44.0 dB

    1108 ~ 2987

    4081049

    466803

    0

    2

    Not Locked

    0

    0

    0 Hz

    4.1 dBmV

    0.0 dB

    0 ~ 4095

    0

    0

    0

    <tabindex=-1>Upstream OFDMA Channels

    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: Tue Apr 26 10:26:54 2022

    System Up Time: 0:06:06

    And as far as the Event Log:

    Time

    Priority

    Description

    2022-04-26, 10:23:20

    Warning (5)

    Dynamic Range Window violation

    2022-04-26, 10:23:20

    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;

    2022-04-26, 10:23:13

    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;

    2022-04-26, 10:23:08

    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;

    2022-04-26, 10:23:08

    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)

    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;

    2022-04-26, 10:20:26

    Critical (3)

    Resetting the cable modem due to docsDevResetNow

    2022-04-26, 10:09:15

    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;

    2022-04-26, 10:09:13

    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;

    2022-04-26, 10:08:52

    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;

    2022-04-26, 10:08:47

    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;

    2022-04-26, 10:08:42

    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;

    2022-04-26, 10:02:26

    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;

    2022-04-26, 10:02:25

    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;

    2022-04-26, 09:56:14

    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;

    2022-04-26, 09:56:10

    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;

    2022-04-26, 09:55:50

    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;

    2022-04-26, 09:55:50

    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;

    2022-04-26, 09:55:30

    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;

    2022-04-26, 09:55:30

    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;

    2022-04-26, 09:55:11

    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;

    2022-04-26, 09:55:10

    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;

    2022-04-26, 09:54:51

    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;

    2022-04-26, 09:54:50

    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;

    2022-04-26, 09:54:31

    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;

    2022-04-26, 09:54:31

    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;

    2022-04-26, 09:54:11

    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;

    2022-04-26, 09:54:10

    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;

    2022-04-26, 09:52:41

    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;

    2022-04-26, 09:52:35

    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;

    2022-04-26, 09:52:32

    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;

    2022-04-23, 11:27:36

    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;

    2022-04-23, 11:27:34

    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;

    2022-04-23, 11:27:33

    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;

    Fingers crossed at this point...

Reply Children
  • - Just to keep an easier eye on things, right after I took the screenshots and made that last post, I cleared the Event Log. As of this post, there's ZERO entries in the Event Log, so hopefully it keeps this up and won't have any further drops.

    I'll give it three or four days and try the Modem Reset feature from the app again. It worked right after the guy was done, but just like before, it works for four or five days when I started having problems and needed to reboot the modem, then it worked fine until the next time the modem froze up.

    So thanks for all the help. I'll make sure to post an update here around the end of the week to see if that did the trick or not.

  • As of this post, there's ZERO entries in the Event Log

    I will keep a eye open for a update in 3-4 days. It was nice working with you.

  • - So it has been 360:57:21 that the modem has been online without having to do a power cycle on it. Seems that the "Small" Attenuator that the tech put on the line did the trick.

    I see NO uncorrectable Codewords on any line for any connections now.

    Thanks again for the assistance, and it was nice working with you and pointing me in the correct direction, sir!

  • it was nice working with you and pointing me in the correct direction, sir!

    Sorry I was a little off track with the OFDM channel. Guess that was unimportant or cleared up somehow. Cheers!