CAX80 Firmware issues

[Fendforself]

Started have an issue last week with my cable speeds had a tech come out twice in a week to check for issues. I have my modem re-provisioned which is the only thing that fixes it for a time. I tried to get RMA but they keep telling me the modem is working properly and ill have to pay to get support. Correct me if I'm wrong but the settings for the device are provisioned by the cable company so there would be no settings to change to get it working properly meaning the firmware is bad or the device is. I have since switched to a different modem and have no problems.I have done trouble shooting, factory reset, firmware updates, etc..  Support will still not RMA my device.

[FURRYe38]

What Firmware version is currently loaded?

Would need the CAX80 back online and connected to the ISP coax line and then Please post a copy and paste of the modems connection status and event log page for review here in the forums.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-m...
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-mode...

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-Mod...
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

[Kitsap]

---

@Fendforself wrote:

Started have an issue last week with my cable speeds had a tech come out twice in a week to check for issues. I have my modem re-provisioned which is the only thing that fixes it for a time. I tried to get RMA but they keep telling me the modem is working properly and ill have to pay to get support. Correct me if I'm wrong but the settings for the device are provisioned by the cable company so there would be no settings to change to get it working properly meaning the firmware is bad or the device is. I have since switched to a different modem and have no problems.I have done trouble shooting, factory reset, firmware updates, etc..  Support will still not RMA my device.

---

Disagree.  Your CAX80 is a combination cable modem and Wi-Fi router.  The cable modem section of the device has firmware that is provisioned by the ISP.  Not many settings you have any control over on that side.  The Wi-Fi router side has a separate firmware package that is under the control of the end user.  There are many settings on the router side that are under control of the end user.

Follow this link:  https://www.netgear.com/support/ feed in your CAX80 model number.  Look for a link to Product Support where you can download the manual and firmware updates for the router side of the device.  Way too early to give up on that particular device.

[Fendforself]

Firmware was the latest release. No changes to firmware since I bought it in November 20th had no issues until last week.

Modems connection status had no errors - tech verified 

Event Logs only issue

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing

Tech noticed that that multi gig light went from white to orange after he unplugged the coaxial cable to use in his testing equipment and plugged it back in. After power cycling, factory reset no fix. Factory reset and reprovision fixed the issue again until power cycling. Speeds go from 950mbps to < 1mbps when the issue pops up. 

If I can get around to it. I will swap the modems again and post the cable connection status. As of now with no changes to my network I'm using a spectrum modem without issues.

[Fendforself]

"Disagree.  Your CAX80 is a combination cable modem and Wi-Fi router.  The cable modem section of the device has firmware that is provisioned by the ISP.  Not many settings you have any control over on that side.  The Wi-Fi router side has a separate firmware package that is under the control of the end user.  There are many settings on the router side that are under control of the end user."

Using the router portion I had no slowdowns on my network using plex or transferring files between computers. Only issues were modem related.

[FURRYe38]

Will need both full cable connection status log and event logs please. 

[Fendforself]

Cable Diagnostic

Status: Good

Internet Access: Good

Downstream Status: Good

Downstream Power Level: Good

Downstream SNR: Good

Upstream Status: Good

Upstream Power Level: Good

Current time: Tue Mar 14 15:28:40 2023

Startup Procedure
Acquire Downstream Channel: 513 MHz Locked
Connectivity State: OK Operational
Boot State: OK Operational
Security: Enabled BPI+

Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked 256 QAM 24 513000000 Hz 1.6 dBmV 43.5 dB 0 0
2 Locked 256 QAM 1 363000000 Hz 3.2 dBmV 43.7 dB 0 0
3 Locked 256 QAM 2 369000000 Hz 3.3 dBmV 43.8 dB 0 0
4 Locked 256 QAM 3 375000000 Hz 3.5 dBmV 43.8 dB 0 0
5 Locked 256 QAM 4 381000000 Hz 3.2 dBmV 43.8 dB 0 0
6 Locked 256 QAM 5 387000000 Hz 3.2 dBmV 43.8 dB 0 0
7 Locked 256 QAM 6 393000000 Hz 2.8 dBmV 43.7 dB 0 0
8 Locked 256 QAM 7 399000000 Hz 2.7 dBmV 43.5 dB 0 0
9 Locked 256 QAM 8 405000000 Hz 2.7 dBmV 43.6 dB 0 0
10 Locked 256 QAM 9 411000000 Hz 2.8 dBmV 43.7 dB 0 0
11 Locked 256 QAM 10 417000000 Hz 2.6 dBmV 43.6 dB 0 0
12 Locked 256 QAM 11 423000000 Hz 2.4 dBmV 43.5 dB 0 0
13 Locked 256 QAM 13 441000000 Hz 2.2 dBmV 43.6 dB 0 0
14 Locked 256 QAM 14 447000000 Hz 2 dBmV 43.5 dB 0 0
15 Locked 256 QAM 15 453000000 Hz 2.1 dBmV 43.5 dB 0 0
16 Locked 256 QAM 16 459000000 Hz 2 dBmV 43.5 dB 0 0
17 Locked 256 QAM 17 465000000 Hz 1.8 dBmV 43.4 dB 0 0
18 Locked 256 QAM 18 471000000 Hz 1.7 dBmV 43.5 dB 0 0
19 Locked 256 QAM 19 477000000 Hz 1.9 dBmV 43.5 dB 0 0
20 Locked 256 QAM 20 483000000 Hz 1.7 dBmV 43.5 dB 0 0
21 Locked 256 QAM 21 489000000 Hz 1.7 dBmV 43.3 dB 0 0
22 Locked 256 QAM 22 495000000 Hz 1.5 dBmV 43.5 dB 0 0
23 Locked 256 QAM 23 507000000 Hz 1.5 dBmV 43.4 dB 0 0
24 Locked 256 QAM 26 519000000 Hz 1.4 dBmV 43.5 dB 0 0
25 Locked 256 QAM 27 525000000 Hz 1.3 dBmV 43.3 dB 0 0
26 Locked 256 QAM 28 531000000 Hz 1 dBmV 43.2 dB 0 0
27 Locked 256 QAM 29 537000000 Hz 0.9 dBmV 43.2 dB 0 0
28 Locked 256 QAM 30 543000000 Hz 1 dBmV 43.2 dB 0 0
29 Locked 256 QAM 31 549000000 Hz 1 dBmV 43.3 dB 0 0
30 Locked 256 QAM 32 555000000 Hz 0.8 dBmV 43.1 dB 0 0
31 Locked 256 QAM 33 561000000 Hz 0.6 dBmV 42.9 dB 0 0
32 Not Locked Unknown 0 0 Hz 0.0 0.0 0 0

Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 62 5120 Ksym/sec 24200000 Hz 37.8 dBmV
2 Locked ATDMA 61 5120 Ksym/sec 17800000 Hz 38.0 dBmV
3 Locked ATDMA 64 5120 Ksym/sec 37000000 Hz 40.5 dBmV
4 Locked ATDMA 63 5120 Ksym/sec 30600000 Hz 39.5 dBmV
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0

Downstream OFDM Channels
Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
1 Locked 0 ,1 ,2 25 668000000 Hz -1.22 dBmV 41.0 dB 1108 ~ 2987 822343 804175 0
2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0

Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Not Locked 0 0 0 Hz 0 dBmV
2 Not Locked 0 0 0 Hz 0 dBmV

Event Log
Time Priority Description
Tue Mar 14 15:27:21 2023 Notice DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:26:54 2023 Notice TLV-11 - unrecognized OID;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:26:50 2023 Error Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:26:50 2023 Error Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:26:50 2023 Error Missing BP Configuration Setting TLV Type: 17.3;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:26:50 2023 Warning DHCP WARNING - Non-critical field invalid in response ;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:50 1970 Notice Overriding MDD IP initialization parameters; IP provisioning mode = IPv4
Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:49 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:46 2023 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:17 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:11 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:07 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;

This time speeds were less than 150mbps

[Fendforself]

Cable Diagnostic

Status: Good

Action: Your setup looks fine. If you are still experience an internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.

Internet Access: Good

Downstream Status: Good

Downstream Power Level: Good

Downstream SNR: Good

Upstream Status: Good

Upstream Power Level: Good

Current time: Tue Mar 14 15:18:28 2023

Startup Procedure
Acquire Downstream Channel: 513 MHz Locked
Connectivity State: OK Operational
Boot State: OK Operational
Security: Enabled BPI+

Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked 256 QAM 24 513000000 Hz 1.6 dBmV 43.5 dB 0 0
2 Locked 256 QAM 1 363000000 Hz 3.2 dBmV 43.8 dB 0 0
3 Locked 256 QAM 2 369000000 Hz 3.3 dBmV 43.8 dB 0 0
4 Locked 256 QAM 3 375000000 Hz 3.5 dBmV 43.9 dB 0 0
5 Locked 256 QAM 4 381000000 Hz 3.3 dBmV 43.8 dB 0 0
6 Locked 256 QAM 5 387000000 Hz 3.2 dBmV 43.8 dB 0 0
7 Locked 256 QAM 6 393000000 Hz 2.9 dBmV 43.7 dB 0 0
8 Locked 256 QAM 7 399000000 Hz 2.7 dBmV 43.6 dB 0 0
9 Locked 256 QAM 8 405000000 Hz 2.6 dBmV 43.7 dB 0 0
10 Locked 256 QAM 9 411000000 Hz 2.8 dBmV 43.6 dB 0 0
11 Locked 256 QAM 10 417000000 Hz 2.7 dBmV 43.6 dB 0 0
12 Locked 256 QAM 11 423000000 Hz 2.4 dBmV 43.5 dB 0 0
13 Locked 256 QAM 13 441000000 Hz 2.3 dBmV 43.6 dB 0 0
14 Locked 256 QAM 14 447000000 Hz 2.1 dBmV 43.5 dB 0 0
15 Locked 256 QAM 15 453000000 Hz 2.2 dBmV 43.6 dB 0 0
16 Locked 256 QAM 16 459000000 Hz 2.1 dBmV 43.5 dB 0 0
17 Locked 256 QAM 17 465000000 Hz 1.8 dBmV 43.4 dB 0 0
18 Locked 256 QAM 18 471000000 Hz 1.8 dBmV 43.4 dB 0 0
19 Locked 256 QAM 19 477000000 Hz 2 dBmV 43.5 dB 0 0
20 Locked 256 QAM 20 483000000 Hz 1.8 dBmV 43.4 dB 0 0
21 Locked 256 QAM 21 489000000 Hz 1.7 dBmV 43.3 dB 0 0
22 Locked 256 QAM 22 495000000 Hz 1.6 dBmV 43.4 dB 0 0
23 Locked 256 QAM 23 507000000 Hz 1.6 dBmV 43.4 dB 0 0
24 Locked 256 QAM 26 519000000 Hz 1.4 dBmV 43.4 dB 0 0
25 Locked 256 QAM 27 525000000 Hz 1.4 dBmV 43.3 dB 0 0
26 Locked 256 QAM 28 531000000 Hz 1.1 dBmV 43.3 dB 0 0
27 Locked 256 QAM 29 537000000 Hz 0.9 dBmV 43.1 dB 0 0
28 Locked 256 QAM 30 543000000 Hz 1.1 dBmV 43.2 dB 0 0
29 Locked 256 QAM 31 549000000 Hz 1 dBmV 43.3 dB 0 0
30 Locked 256 QAM 32 555000000 Hz 0.8 dBmV 43.1 dB 0 0
31 Locked 256 QAM 33 561000000 Hz 0.6 dBmV 42.8 dB 0 0
32 Not Locked Unknown 0 0 Hz 0.0 0.0 0 0

Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 64 5120 Ksym/sec 37000000 Hz 40.8 dBmV
2 Locked ATDMA 61 5120 Ksym/sec 17800000 Hz 38.3 dBmV
3 Locked ATDMA 62 5120 Ksym/sec 24200000 Hz 37.8 dBmV
4 Locked ATDMA 63 5120 Ksym/sec 30600000 Hz 39.5 dBmV
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0

Downstream OFDM Channels
Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
1 Locked 0 ,1 ,2 25 668000000 Hz -1.22 dBmV 41.0 dB 1108 ~ 2987 912910 894431 0
2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0

Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Not Locked 0 0 0 Hz 0 dBmV
2 Not Locked 0 0 0 Hz 0 dBmV

Event Log
Time Priority Description
Tue Mar 14 15:17:11 2023 Notice DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:16:46 2023 Notice TLV-11 - unrecognized OID;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:16:42 2023 Error Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:16:42 2023 Error Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:16:42 2023 Error Missing BP Configuration Setting TLV Type: 17.3;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:16:41 2023 Warning DHCP WARNING - Non-critical field invalid in response ;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:49 1970 Notice Overriding MDD IP initialization parameters; IP provisioning mode = IPv4
Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:49 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:46 2023 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:17 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:11 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 15:08:07 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;

Speeds < 250mbps

[Fendforself]

Cable Diagnostic

Status: Good

Action: Your setup looks fine. If you are still experience an internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.

Internet Access: Good

Downstream Status: Good

Downstream Power Level: Good

Downstream SNR: Good

Upstream Status: Good

Upstream Power Level: Good

Current time: Tue Mar 14 14:56:02 2023

Startup Procedure
Acquire Downstream Channel: 513 MHz Locked
Connectivity State: OK Operational
Boot State: OK Operational
Security: Enabled BPI+

Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked 256 QAM 24 513000000 Hz 2 dBmV 43.5 dB 0 0
2 Locked 256 QAM 1 363000000 Hz 3.5 dBmV 43.7 dB 0 0
3 Locked 256 QAM 2 369000000 Hz 3.6 dBmV 43.8 dB 0 0
4 Locked 256 QAM 3 375000000 Hz 3.8 dBmV 43.9 dB 0 0
5 Locked 256 QAM 4 381000000 Hz 3.7 dBmV 43.8 dB 0 0
6 Locked 256 QAM 5 387000000 Hz 3.5 dBmV 43.8 dB 0 0
7 Locked 256 QAM 6 393000000 Hz 3.2 dBmV 43.7 dB 0 0
8 Locked 256 QAM 7 399000000 Hz 3 dBmV 43.6 dB 0 0
9 Locked 256 QAM 8 405000000 Hz 3.1 dBmV 43.6 dB 0 0
10 Locked 256 QAM 9 411000000 Hz 3.1 dBmV 43.7 dB 0 0
11 Locked 256 QAM 10 417000000 Hz 3.1 dBmV 43.6 dB 0 0
12 Locked 256 QAM 11 423000000 Hz 2.8 dBmV 43.5 dB 0 0
13 Locked 256 QAM 13 441000000 Hz 2.6 dBmV 43.5 dB 0 0
14 Locked 256 QAM 14 447000000 Hz 2.4 dBmV 43.5 dB 0 0
15 Locked 256 QAM 15 453000000 Hz 2.6 dBmV 43.5 dB 0 0
16 Locked 256 QAM 16 459000000 Hz 2.4 dBmV 43.5 dB 0 0
17 Locked 256 QAM 17 465000000 Hz 2.2 dBmV 43.4 dB 0 0
18 Locked 256 QAM 18 471000000 Hz 2.1 dBmV 43.4 dB 0 0
19 Locked 256 QAM 19 477000000 Hz 2.3 dBmV 43.5 dB 0 0
20 Locked 256 QAM 20 483000000 Hz 2.1 dBmV 43.4 dB 0 0
21 Locked 256 QAM 21 489000000 Hz 2.1 dBmV 43.2 dB 0 0
22 Locked 256 QAM 22 495000000 Hz 1.9 dBmV 43.4 dB 0 0
23 Locked 256 QAM 23 507000000 Hz 1.9 dBmV 43.4 dB 0 0
24 Locked 256 QAM 26 519000000 Hz 1.8 dBmV 43.4 dB 0 0
25 Locked 256 QAM 27 525000000 Hz 1.7 dBmV 43.4 dB 0 0
26 Locked 256 QAM 28 531000000 Hz 1.4 dBmV 43.3 dB 0 0
27 Locked 256 QAM 29 537000000 Hz 1.3 dBmV 43.1 dB 0 0
28 Locked 256 QAM 30 543000000 Hz 1.4 dBmV 43.3 dB 0 0
29 Locked 256 QAM 31 549000000 Hz 1.4 dBmV 43.3 dB 0 0
30 Locked 256 QAM 32 555000000 Hz 1.1 dBmV 43.1 dB 0 0
31 Locked 256 QAM 33 561000000 Hz 1 dBmV 42.9 dB 0 0
32 Not Locked Unknown 0 0 Hz 0.0 0.0 0 0

Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 62 5120 Ksym/sec 24200000 Hz 37.8 dBmV
2 Locked ATDMA 61 5120 Ksym/sec 17800000 Hz 38.0 dBmV
3 Locked ATDMA 64 5120 Ksym/sec 37000000 Hz 40.5 dBmV
4 Locked ATDMA 63 5120 Ksym/sec 30600000 Hz 39.3 dBmV
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0

Downstream OFDM Channels
Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
1 Locked 0 ,1 ,2 25 668000000 Hz -0.92 dBmV 41.2 dB 1108 ~ 2987 600512 581370 0
2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0

Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Not Locked 0 0 0 Hz 0 dBmV
2 Not Locked 0 0 0 Hz 0 dBmV

Event Log
Time Priority Description
Tue Mar 14 14:54:45 2023 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 14:54:39 2023 Notice DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 14:54:14 2023 Notice TLV-11 - unrecognized OID;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 14:54:09 2023 Error Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 14:54:09 2023 Error Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 14:54:09 2023 Error Missing BP Configuration Setting TLV Type: 17.3;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Tue Mar 14 14:54:09 2023 Warning DHCP WARNING - Non-critical field invalid in response ;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:51 1970 Notice Overriding MDD IP initialization parameters; IP provisioning mode = IPv4
Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:53 1970 Critical DHCP FAILED - Discover sent, no offer received;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:55:12 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:55:08 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:54:49 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:54:48 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:54:35 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:54:34 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:52:22 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:52:17 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:52:12 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:48 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:28:56 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:28:52 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:28:34 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:28:34 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:28:03 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:28:03 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:27:32 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:27:31 2023 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:25:12 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:25:06 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Mon Mar 13 16:25:04 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:47 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:48 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:44 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:47 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Thu Jan 1 00:00:44 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Sat Mar 11 09:42:59 2023 Critical Resetting the cable modem due to docsDevResetNow
Thu Jan 1 00:00:54 1970 Critical DHCP FAILED - Discover sent, no offer received;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=xx:xx:xx:xx:xx:xx;CM-QOS=1.1;CM-VER=3.1;
Fri Mar 10 17:09:32 2023 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

Speeds < 400mbps

I'm now back on another modem with the same equipment with no speed slowdowns.

[FURRYe38]

Power levels look good.

However, the ISP needs to review and resolve all the Errors, Criticals, and Warnings. That's on them.