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Netgear CAX80 Experiencing random dropouts
Hi all - I have a Nighthawk Cable Modem with Built-in WiFi 6 Router (CAX80). It's been fine for about 5 months but just within the last week I've been experiencing random dropouts. The signal will gi...
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.html
https://highspeed.tips/docsis-events/
Checked with the ISP this morning. They did a number of tests and said everything looked sorted on their end.
No splitters. Line looks good for as much as I can see it.
Connection status page:
Connection Status |
| IP Address | 98.251.178.66, 2001:558:6006:4d:8022:ad98:8d49:74b9 |
| Subnet Mask | 255.255.63.0, /64 |
| Default Gateway | 98.251.176.1 |
| DHCP Server | 76.96.93.7 |
| DNS Server | 75.75.75.75, 75.75.76.76 2001:558:feed::1, 2001:558:feed::2 |
| Lease Obtained | 3 days, 5 Hours, 24 minutes |
| Lease Expires | 3 days, 4 Hours, 42 minutes |
It's doing it right now and I grabbed this screenshot of the Event Log if that helps.
your event log is showing power issues.
Got a copy of the cable connections age? (shows upstream/downstream values)
Here it is:
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: Thu Mar 31 14:14:12 2022Startup Procedure
Acquire Downstream Channel: 627 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 37 627000000 Hz 5.6 dBmV 38.7 dB 2282 42
2 Locked 256 QAM 13 483000000 Hz -1.9 dBmV 38.4 dB 6193 2619
3 Locked 256 QAM 14 489000000 Hz -1.3 dBmV 38.6 dB 4884 345
4 Locked 256 QAM 15 495000000 Hz -1.2 dBmV 38.4 dB 10989 4554
5 Locked 256 QAM 16 501000000 Hz -0.2 dBmV 38.4 dB 6928 2411
6 Locked 256 QAM 17 507000000 Hz 1.2 dBmV 38.6 dB 4597 324
7 Locked 256 QAM 18 513000000 Hz 2 dBmV 38.5 dB 4768 553
8 Locked 256 QAM 19 519000000 Hz 2.9 dBmV 38.6 dB 5200 1424
9 Locked 256 QAM 20 525000000 Hz 4.4 dBmV 38.6 dB 4170 380
10 Locked 256 QAM 21 531000000 Hz 4.6 dBmV 38.7 dB 3459 109
11 Locked 256 QAM 22 537000000 Hz 4.4 dBmV 38.7 dB 4745 1044
12 Locked 256 QAM 23 543000000 Hz 4.1 dBmV 38.7 dB 4241 554
13 Locked 256 QAM 24 549000000 Hz 3.1 dBmV 38.6 dB 3197 121
14 Locked 256 QAM 25 555000000 Hz 1.8 dBmV 38.2 dB 30768 27290
15 Locked 256 QAM 26 561000000 Hz 1.1 dBmV 38.2 dB 14170 8442
16 Locked 256 QAM 27 567000000 Hz 0.4 dBmV 38.3 dB 4038 141
17 Locked 256 QAM 28 573000000 Hz -0.6 dBmV 38 dB 5188 823
18 Locked 256 QAM 29 579000000 Hz -0.2 dBmV 38.2 dB 5420 1478
19 Locked 256 QAM 30 585000000 Hz 0.4 dBmV 38.3 dB 3841 311
20 Locked 256 QAM 31 591000000 Hz 0.4 dBmV 38.3 dB 4162 328
21 Locked 256 QAM 32 597000000 Hz 1.4 dBmV 38.4 dB 4957 986
22 Locked 256 QAM 33 603000000 Hz 2.8 dBmV 38.5 dB 4395 893
23 Locked 256 QAM 34 609000000 Hz 3.1 dBmV 38.5 dB 3049 149
24 Locked 256 QAM 35 615000000 Hz 5 dBmV 38.6 dB 4240 1043
25 Locked 256 QAM 36 621000000 Hz 6.4 dBmV 38.7 dB 3541 1645
26 Locked 256 QAM 38 633000000 Hz 5 dBmV 38.7 dB 4307 670
27 Locked 256 QAM 39 639000000 Hz 3.8 dBmV 38.6 dB 3573 2332
28 Locked 256 QAM 40 645000000 Hz 1.4 dBmV 38.4 dB 3383 212
29 Locked 256 QAM 41 651000000 Hz 0.1 dBmV 38.4 dB 4235 293
30 Locked 256 QAM 42 657000000 Hz -0.8 dBmV 38.3 dB 5198 2246
31 Locked 256 QAM 43 663000000 Hz -2.8 dBmV 37.8 dB 4475 816
32 Locked 256 QAM 44 669000000 Hz -4.1 dBmV 37.6 dB 6621 4374
Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 4 5120 Ksym/sec 16400000 Hz 34.0 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 35600000 Hz 35.3 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 29200000 Hz 34.8 dBmV
4 Locked ATDMA 3 5120 Ksym/sec 22800000 Hz 34.3 dBmV
5 Locked ATDMA 5 1280 Ksym/sec 39600000 Hz 41.8 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 0 159 690000000 Hz -10.52 dBmV 33.2 dB 1126 ~ 2969 275999004 89739231 17375
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
Thu Mar 31 13:58:32 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:57:51 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:50:44 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:50:38 2022 Notice CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:50:08 2022 Notice CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:49:51 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:48:51 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:48:20 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:44:05 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:43:27 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:07:32 2022 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:06:38 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 13:05:44 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 12:49:32 2022 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:58:17 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:57:45 2022 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:52:52 2022 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:52:44 2022 Notice CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:52:19 2022 Notice CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:52:18 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:51:41 2022 Notice CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:51:40 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:51:34 2022 Notice CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:51:34 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:59 2022 Notice CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:57 2022 Notice CM-STATUS message sent. Event Type Code: 1; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:56 2022 Warning MDD message timeout;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:56 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:51 2022 Notice CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:50 2022 Notice CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:50 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:47 2022 Notice CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:47 2022 Notice CM-STATUS message sent. Event Type Code: 1; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:46 2022 Warning MDD message timeout;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:46 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:41 2022 Notice CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:41 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:38 2022 Notice CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:38 2022 Notice CM-STATUS message sent. Event Type Code: 1; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
Thu Mar 31 11:50:37 2022 Notice CM-STATUS message sent. Event Type Code: 21; Chan ID: 32 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=80:cc:9c:71:1c:90;CMTS-MAC=b0:90:7e:0e:9a:b0;CM-QOS=1.1;CM-VER=3.1;
