download light keep blinking, no internet cax80

master_ravi · ‎2023-02-25

including log

Time Priority Description
Sat Feb 25 07:08:05 2023 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:08:04 2023 Warning (5) Dynamic Range Window violation
Sat Feb 25 07:08:04 2023 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:08:04 2023 Warning (5) Dynamic Range Window violation
Sat Feb 25 07:08:04 2023 Warning (5) RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:08:03 2023 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:56 2023 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:56 2023 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:55 2023 Notice (6) TLV-11 - unrecognized OID;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:40 2023 Notice (6) Honoring MDD; IP provisioning mode = IPv6
Sat Feb 25 07:07:37 2023 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:19 2023 Critical (3) SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:17 2023 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:16 2023 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:07:15 2023 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:06:57 2023 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:06:56 2023 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:05:53 2023 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:05:53 2023 Warning (5) MDD message timeout;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:05:47 2023 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:05:47 2023 Warning (5) MDD message timeout;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:05:44 2023 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 07:05:41 2023 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 01:17:56 2023 Notice (6) CM-STATUS message sent. Event Type Code: 22; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;
Sat Feb 25 01:17:31 2023 Notice (6) CM-STATUS message sent. Event Type Code: 20; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;

michaelkenward · ‎2023-02-25

Much as the logs can be useful, it helps to have a description of what is going on. Your subject is thin on details.

Which is the "download light". I can't recall any LEDs with that label.

Do you mean the Upstream/Downstream LEDs?

Many of the LEDs – Internet, WiFi, LAN – blink when there is traffic.

The CAX80 is a cable modem/router. What dies your ISP say? Those logs look like a connection problem.

There are some serious experts on cable modems around here. While many questions about routers are generic and could be answered anywhere, some things need specialist knowledge.

You might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here:

Cable Modems & Routers

You might like to search there for messages related to your problem.

I will ask the Netgear moderator to move your message.

In the meantime you could visit the support pages:

Support | NETGEAR

Feed in your model number and check the documentation for your hardware. Look at the label on the device for the model number.

Check for various troubleshooting tips.

You may have done this already. I can't tell from your message.

I mention it because Netgear stopped supplying printed manuals and CD versions some years ago and people sometimes miss the downloads.

master_ravi · ‎2023-02-25

I meant Downstream LEDs keep blinking

TimePriorityDescriptionSat Feb 25 07:08:05 2023Critical (3)No Ranging Response received - T3 time-out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:08:04 2023Warning (5)Dynamic Range Window violationSat Feb 25 07:08:04 2023Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:08:04 2023Warning (5)Dynamic Range Window violationSat Feb 25 07:08:04 2023Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:08:03 2023Critical (3)No Ranging Response received - T3 time-out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:56 2023Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:56 2023Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:55 2023Notice (6)TLV-11 - unrecognized OID;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:40 2023Notice (6)Honoring MDD; IP provisioning mode = IPv6Sat Feb 25 07:07:37 2023Critical (3)No Ranging Response received - T3 time-out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:19 2023Critical (3)SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:17 2023Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:16 2023Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:07:15 2023Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:06:57 2023Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:06:56 2023Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:05:53 2023Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:05:53 2023Warning (5)MDD message timeout;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:05:47 2023Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:05:47 2023Warning (5)MDD message timeout;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:05:44 2023Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 07:05:41 2023Notice (6)CM-STATUS message sent. Event Type Code: 20; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 01:17:56 2023Notice (6)CM-STATUS message sent. Event Type Code: 22; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;Sat Feb 25 01:17:31 2023Notice (6)CM-STATUS message sent. Event Type Code: 20; Chan ID: 48; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=94:18:65:cb:3c:43;CMTS-MAC=00:01:5c:6b:f0:49;CM-QOS=1.1;CM-VER=3.1;

michaelkenward · ‎2023-02-25

What does the Internet service provider say?

You'll need a cable expert to help out here. With luck one will be along soon.

FURRYe38 · ‎2023-02-25

What Firmware version is currently loaded?
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-m...

You need to have the ISP review and resolve all Errors, Critials and Warning seen in the Events logs.

@master_ravi

master_ravi · ‎2023-02-25

using latest firmware V2.1.5.2, I have already posted event log

plemans · ‎2023-02-27

Your logs indicate line issues.

do you also have a screensnip of the cable connections page? that gives us an idea of what to point your at prior to contacting the ISP to fix the line because sometimes the issues is internal to the home (and some isp's charge to fix those)

Here's some basic things to check.

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.
If you can, simply connect the modem right where the coax comes into the home. This prevents wiring in the home from being the issue. And some ISP’s charge if the wiring issue is in the home. So this helps prevent this.

master_ravi · ‎2023-02-27

cable connection is perfect no issue, thanks for advice

plemans · ‎2023-02-27

Glad to see a screensnip of it.

Can really give you some good advice off that.

The whole reason for asking is you can compare upstream/downstream values and it gives you an idea if it might be coming from a splitter, amplifier, etc that could be causing the issues. Without that, your limited to having the ISP check it.

master_ravi · ‎2023-03-05

here is snippet of power level

Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked 256 QAM 20 507000000 Hz 1.7 dBmV 42.6 dB 0 0
2 Locked 256 QAM 4 405000000 Hz 1 dBmV 42.4 dB 0 0
3 Locked 256 QAM 5 411000000 Hz 1 dBmV 42.4 dB 0 0
4 Locked 256 QAM 6 417000000 Hz 1 dBmV 42.5 dB 0 0
5 Locked 256 QAM 7 423000000 Hz 1 dBmV 42.4 dB 0 0
6 Locked 256 QAM 8 429000000 Hz 0.7 dBmV 42.2 dB 0 0
7 Locked 256 QAM 9 435000000 Hz 0 dBmV 41.8 dB 0 0
8 Locked 256 QAM 10 441000000 Hz -0.6 dBmV 41.3 dB 0 0
9 Locked 256 QAM 11 447000000 Hz -0.8 dBmV 41.3 dB 0 0
10 Locked 256 QAM 12 453000000 Hz 0 dBmV 41.9 dB 0 0
11 Locked 256 QAM 13 459000000 Hz 0.7 dBmV 42.2 dB 0 0
12 Locked 256 QAM 14 465000000 Hz 0.9 dBmV 42.4 dB 0 0
13 Locked 256 QAM 15 471000000 Hz 1.1 dBmV 42.5 dB 0 0
14 Locked 256 QAM 16 477000000 Hz 1.4 dBmV 42.6 dB 0 0
15 Locked 256 QAM 17 483000000 Hz 1.5 dBmV 42.6 dB 0 0
16 Locked 256 QAM 18 489000000 Hz 1.7 dBmV 42.8 dB 0 0
17 Locked 256 QAM 19 495000000 Hz 1.6 dBmV 42.2 dB 0 0
18 Locked 256 QAM 21 513000000 Hz 1.8 dBmV 42.8 dB 0 0
19 Locked 256 QAM 22 519000000 Hz 2 dBmV 42.8 dB 0 0
20 Locked 256 QAM 23 525000000 Hz 2.2 dBmV 42.9 dB 0 0
21 Locked 256 QAM 24 531000000 Hz 2.3 dBmV 42.6 dB 0 0
22 Locked 256 QAM 25 543000000 Hz 2.5 dBmV 43.1 dB 0 0
23 Locked 256 QAM 26 549000000 Hz 2.6 dBmV 43.2 dB 0 0
24 Locked 256 QAM 27 555000000 Hz 2.7 dBmV 43.1 dB 0 0
25 Locked 256 QAM 28 561000000 Hz 2.7 dBmV 43.2 dB 0 0
26 Locked 256 QAM 29 567000000 Hz 3 dBmV 43.2 dB 0 0
27 Locked 256 QAM 30 573000000 Hz 3 dBmV 43.1 dB 0 0
28 Locked 256 QAM 31 579000000 Hz 3 dBmV 43.2 dB 0 0
29 Locked 256 QAM 32 585000000 Hz 2.6 dBmV 43.1 dB 0 0
30 Locked 256 QAM 33 591000000 Hz 2.9 dBmV 43.1 dB 0 0
31 Locked 256 QAM 34 597000000 Hz 3.3 dBmV 43.2 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 4 5120 Ksym/sec 29200000 Hz 38.8 dBmV
2 Locked ATDMA 1 2560 Ksym/sec 10400000 Hz 40.3 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 16400000 Hz 38.0 dBmV
4 Locked ATDMA 3 5120 Ksym/sec 22800000 Hz 38.3 dBmV
5 Locked ATDMA 5 5120 Ksym/sec 35600000 Hz 39.0 dBmV
6 Locked ATDMA 6 2560 Ksym/sec 40400000 Hz 42.5 dBmV
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 ,3 48 688000000 Hz 3.68 dBmV 42.6 dB 1108 ~ 2987 968759028 697931731 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

plemans · ‎2023-03-05

You've got a little dip in the power levels. They're fairly consistent but have 2 channels still within spec and without errors. But with that and your logs, its still indicating a line issue

master_ravi · ‎2023-03-05

Any suggestion, how to go about resolving it? what the exact specs for upstream and downstream power level? thanks

plemans · ‎2023-03-06

If you keep getting drops and errors in the logs and you've done what you can to check the cabling, then the isp might need to check it.

Kitsap · ‎2023-03-06

@master_ravi wrote:
Any suggestion, how to go about resolving it? what the exact specs for upstream and downstream power level? thanks

Specifications are in the first sentence at the top of the page.

https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router

master_ravi · ‎2023-03-06

thanks for the article, I have replaced directional tap rated at 1200MHz, appear to have stablized connection for now

master_ravi · ‎2023-03-13

LOSING PACKETS INTERMITTENTLY CAX80, impossible to browse net or do anything else on that matter

plemans · ‎2023-03-14

You gave us not much to go off.

1. Is this over wireless? wired?

2. How are you tracing/checking this?

3. what firmware is on the router?

4. do you have screensnips of the cable connection page and event logs?

master_ravi · ‎2023-03-22

well I end up returning modem, picked up different brand that is working better, no issues

plemans · ‎2023-03-23

Fair enough.

Hope the other one works great for you!

You might mark this solved so others aren't still trying to fix it 🙂

download light keep blinking, no internet cax80

download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

Re: download light keep blinking, no internet cax80

LOSING PACKETS INTERMITTENTLY CAX80

Re: LOSING PACKETS INTERMITTENTLY CAX80

Re: LOSING PACKETS INTERMITTENTLY CAX80

Re: LOSING PACKETS INTERMITTENTLY CAX80