Netgear CAX80 Experiencing random dropouts

Question

Hi all - I have a&nbsp;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 give out and everything will stall out for maybe 3-5 minutes, and then pop back in like everything's fine.&nbsp;There doesn't seem to be any rhyme or reason behind it. Called my provider today (Xfinity) and they said the line seems fine so I thought I'd ask here.&nbsp;Firmware is fully updated best I can tell.&nbsp;Went into the router and grabbed an event log. Let me know if there's anything else I can do to give info. Would love some help as my job relies on my internet being stable.&nbsp;Time Priority DescriptionThu Mar 31 10:56:48 2022 Notice (6) 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 10:56:48 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:56:46 2022 Warning (5) 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 10:56:39 2022 Notice (6) 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 10:56:39 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:56:07 2022 Notice (6) 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 10:56:06 2022 Notice (6) 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 10:55:54 2022 Notice (6) 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 10:55:51 2022 Notice (6) 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 10:55:50 2022 Warning (5) 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 10:50:38 2022 Notice (6) CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: E; 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 10:48:48 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:48:36 2022 Warning (5) 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 10:48:35 2022 Notice (6) 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 10:48:29 2022 Notice (6) 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 10:48:26 2022 Notice (6) 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 10:48:25 2022 Notice (6) 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 10:48:24 2022 Warning (5) 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 10:47:56 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:47:43 2022 Notice (6) 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 10:47:43 2022 Notice (6) 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 10:47:35 2022 Notice (6) 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 10:47:34 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:47:32 2022 Notice (6) 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 10:47:32 2022 Notice (6) 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 10:47:30 2022 Warning (5) 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 10:47:29 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:47:25 2022 Notice (6) 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 10:47:18 2022 Notice (6) 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 10:47:11 2022 Notice (6) 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 10:47:10 2022 Warning (5) 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 10:47:01 2022 Notice (6) 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 10:47:00 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:46:46 2022 Notice (6) 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 10:46:39 2022 Notice (6) 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 10:46:38 2022 Notice (6) 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 10:46:37 2022 Notice (6) 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 10:46:36 2022 Warning (5) 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 10:46:26 2022 Notice (6) CM-STATUS message sent. Event Type Code: 21; 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 10:46:15 2022 Notice (6) 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;&nbsp;

curtofranklin · Answer

Ok, thank you so much for the info. So as far as I know, there's no splitters. Where the coax comes into the house is right where the Modem/Router is hooked up. I didn't do anything in particular to modify any of it so this is all factory settings.&nbsp;It looks like my next option is to call the ISP. Appreciate all the help!&nbsp;

FURRYe38 · Answer

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/

curtofranklin · Answer

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

curtofranklin · Answer

It's doing it right now and I grabbed this screenshot of the Event Log if that helps.

plemans · Answer

your event log is showing power issues.&nbsp;
Got a copy of the cable connections age? (shows upstream/downstream values)

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Netgear CAX80 Experiencing random dropouts

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