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Forum Discussion
CAX80 DOWNSTREAM LIGHT BLINKS
On my CAX80 Nighthawk modem/router, the downstream light constantly blinks white, never solid, but I am connected and online. Is this a matter of concern or just a hardware anomaly? My ISP is Comcast / Xfinity. I do seem to be getting the speeds I expect with their "Extreme Pro Internet" package.
2 Replies
Please post a copy and paste of the modems connection status page.
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.
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-Modems/m-p/1530376#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.htmlCable 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 Aug 16 18:30:37 2022Startup Procedure
Acquire Downstream Channel: 597 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 28 597000000 Hz 3.5 dBmV 43.3 dB 0 0
2 Locked 256 QAM 13 507000000 Hz 3.4 dBmV 43.5 dB 0 0
3 Locked 256 QAM 14 513000000 Hz 3.4 dBmV 43.5 dB 0 0
4 Locked 256 QAM 15 519000000 Hz 3.3 dBmV 43.5 dB 0 0
5 Locked 256 QAM 16 525000000 Hz 3.1 dBmV 43.4 dB 0 0
6 Locked 256 QAM 17 531000000 Hz 3.1 dBmV 43.3 dB 0 0
7 Locked 256 QAM 18 537000000 Hz 2.6 dBmV 43.2 dB 0 0
8 Locked 256 QAM 19 543000000 Hz 2 dBmV 42.9 dB 0 0
9 Locked 256 QAM 20 549000000 Hz 2.9 dBmV 43.2 dB 0 0
10 Locked 256 QAM 21 555000000 Hz 2.5 dBmV 43 dB 0 0
11 Locked 256 QAM 22 561000000 Hz 3 dBmV 43.2 dB 0 0
12 Locked 256 QAM 23 567000000 Hz 2.7 dBmV 43.1 dB 0 0
13 Locked 256 QAM 24 573000000 Hz 3.2 dBmV 43.3 dB 0 0
14 Locked 256 QAM 25 579000000 Hz 3.2 dBmV 43.2 dB 0 0
15 Locked 256 QAM 26 585000000 Hz 3.3 dBmV 43.3 dB 0 0
16 Locked 256 QAM 27 591000000 Hz 3 dBmV 43.2 dB 0 0
17 Locked 256 QAM 29 603000000 Hz 3.2 dBmV 43.2 dB 0 0
18 Locked 256 QAM 30 609000000 Hz 3.3 dBmV 43.3 dB 0 0
19 Locked 256 QAM 31 615000000 Hz 3.7 dBmV 43.2 dB 0 0
20 Locked 256 QAM 32 621000000 Hz 3.5 dBmV 43.1 dB 0 0
21 Locked 256 QAM 33 627000000 Hz 3.5 dBmV 43 dB 0 0
22 Locked 256 QAM 34 633000000 Hz 3.5 dBmV 43 dB 0 0
23 Locked 256 QAM 35 639000000 Hz 3.5 dBmV 42.8 dB 0 0
24 Locked 256 QAM 36 645000000 Hz 3.5 dBmV 42.8 dB 0 0
25 Locked 256 QAM 37 651000000 Hz 3.3 dBmV 42.8 dB 0 0
26 Locked 256 QAM 38 657000000 Hz 3 dBmV 42.7 dB 1 0
27 Locked 256 QAM 39 663000000 Hz 2.7 dBmV 42.7 dB 1 0
28 Locked 256 QAM 40 669000000 Hz 2.7 dBmV 42.6 dB 0 0
29 Locked 256 QAM 41 675000000 Hz 1.8 dBmV 41.7 dB 0 0
30 Locked 256 QAM 42 681000000 Hz 2.6 dBmV 42.6 dB 0 0
31 Locked 256 QAM 43 687000000 Hz 2.2 dBmV 42.5 dB 0 0
32 Locked 256 QAM 44 693000000 Hz 3.4 dBmV 42.7 dB 0 0
Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 1 5120 Ksym/sec 35600000 Hz 37.0 dBmV
2 Locked ATDMA 2 5120 Ksym/sec 29200000 Hz 35.8 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 22800000 Hz 34.8 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 16400000 Hz 33.5 dBmV
5 Locked ATDMA 5 2560 Ksym/sec 40400000 Hz 40.5 dBmV
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 ,3 193 702000000 Hz 4.48 dBmV 42.3 dB 1108 ~ 2987 309015177 8720736 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 Aug 16 18:30:21 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:29:43 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:29:01 2022 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:29:01 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:27:36 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:22:04 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:21:22 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:08:44 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:08:19 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:03:03 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:02:09 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:00:56 2022 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:00:56 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 18:00:27 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:55:31 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:54:57 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:44:19 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:43:28 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:14:40 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:13:52 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:13:20 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:12:57 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:11:35 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:11:06 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:10:24 2022 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:08:31 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:07:50 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:07:45 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 17:06:55 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:53:54 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:53:29 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:51:19 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:50:39 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:45:18 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:43:59 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:41:12 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:40:30 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:37:35 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:36:40 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
Tue Aug 16 16:36:24 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:9c:af:06:78;CMTS-MAC=00:90:f0:1e:00:00;CM-QOS=1.1;CM-VER=3.1;
