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CAX80 keeps rebooting
For the past 3 days my CAX80 has been rebooting every 4 to 5 hours. I’ve tried connecting the power source directly to an outlet and that didn’t work. I did a factory reset and that also didn’t work. I’ve tried rebooting from the NH app and manually but that also didn’t work. I’ve only had my router for 2 years I’m not sure what to do at this point.
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Only one reason is that the Modem is loosing the ISP signal or the signal from the ISP is dropping or not getting to the modem. IF this happens the CAX80 will continuously reboot until the ISP signal on the line is established.
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.
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.htmlGetting similar issue. I noticed on 11 Jun 22 the Downstream light was flashing. I unplugged power for 30 seconds and plugged back in which resolved the blinking light. Then on 12 Jun 22, approx. 0300 MST, the modem rebooted and it has rebooted every day since about that time. I reached out to Xfinity, who after much nashing and wailing for teeth, they said that there was a downstream issue and that I needed to switch to a different outlet . . . Still scratching my head over that one. Been plugged into the same one for 2 years, no issue.
SO here is what I see on my Modem page:
Any ideas? I don't think switching outlets will have any result, not sure what the downstream, coming through the Coax, has anything to do with being plugged into the power outlet.
Hi Guys,
Good day!
Welcome to NETGEAR Community!
We are sorry to hear about your experience with the latest firmware update. Does anyone able to isolate the issue by downgrading the firmware?
Please do not hesitate to let me know if you need further assistance.
Regards,
Oliver
Community Team
I've downgraded to v.2.1.3.5 earlier today. So far, no issues, but I'll continue to monitor and report back my results tomorrow.
After nary an issue for a long time my CAX80 indicated a firmware upgrade to 2.1.3.7 was available last week. I upgraded the firmware without issue, but since then I have been experiencing an issue with nightly reboots between 1am to 3am. Not sure of the cause at this time, but I didn't have this issue prior to the firmware upgrade. I have since downgraded to firmware 2.1.3.5 to see if the issue resolves itself.
I have the same issue since updating the firmware to v2.1.3.7. The router reboots between 1am to 3am, 7am to 10am and even in the afternoon. Pretty annoying when you work from home and get disconnected from Zoom calls.
commodon please let us know if the v.2.1.3.5 downgrade resolves the issue for you 🤞
Thank you everyone.
I had the same problems that everyone here is mentioning. I first noticed the issues on 6/10/2022.
Per everyone's suggestions, I have downgraded the firmware. I will let you know what I find out within the next 24 hours.
Mine was rebooting 3-5 times a day. So I'll know fairly quickly.Circling back on this, I was on version .5 for approximately 34 hours without any issues. Then overnight the firmware was upgraded to .7 again and my router has rebooted a number of times already.
This seems to be in line with everyone else.
I will go back to .5, but that will probably just last 1-2 nights.
Is anyone from NG seeing these issues?
I called NG support and spent about 2 hours on hold / being moved around different departments. I was then told a Level 2 Engineer would call me within 30 minutes. They called me 4 hours later. Saying NG will send a new CAX80 but there are none in stock so they will call back in 2 days to get my address.
Given it appears to be a firmware issue I doubt the new device will fix the issue.
Nice work NG support 🤡 🤡 🤡
Hey Moreno,
Everyone that did the firmware update is experiencing reboots every four hours as well. If you look in your router logs it will show a DOS ATTACK LAND. I had Comcast come out and replace cable lines thinking it was Comcast. But now I think it was because of this firmware update. I contacted Netgear about the issue already. So now its just the waiting game.
Have same issue with fw v 2.1.3.7 causing reboots and then loss of admin creds and then [DoS attack] LAND Attack SPT:2190 DPT:2190 errors in the log. This is a very expensive device and so it should be fixed asap as most of us work from home for at least part of the time and so waiting long term for a fix on hardware that is still under warranty in my case is unacceptable.
I upgrade to this for the newer wifi standard and its claim to give better home coverage, but have connections dropping on far side of of a modest 2100 sqft home.all the time. Has been a real disappointment from the start and so I wish I had returned it when I could have but not 7 months in, so stuck with expensive below par gear.
jg62 : Do you have technical support remaining for your device? I suggest calling in or going online (https://my.netgear.com/support/contact.aspx) and opening a ticket.
This way we can get some more attention on this.
If you go online, you can reference this community post.
Thanks.
I did report the issue and their advice was to lower the WAN MTU from the default 1500 by increments of 8, hit apply wait 5 minutes then reboot. I tried it and no joy. $500 brick.
support case# 46119752, but now I can't even see the support case under my profile, but they want me to buy a support contract since I'm past the 90 free support, Glad I wrote the casd number down incase they claim it never happened, SMH.
- My warranty was only for one year. So I no longer have tech support available but I was able to open a ticket. They said if I called back that I would need to purchase some kind of extended warranty. So how do we solve this problem ?
Just curious. Has anyone gone the route of reaching out to Xfinity/Comcast?
I called them and they couldn't do anything over the phone. They said everything looks fine.
Then they scheduled a visit from a technician, but that is when I found this thread and decided that it is more than likely a NG issue. So I postponed the visit a few times.
Now I have a Xfinity technician scheduled to come over tomorrow.
I just wanted to see if anyone had gone down that path and what the result was. If nobody else has this experience then I will just have the technician come and give you feedback.The frustrating thing is as soon as you have a 3rd party modem router, Xfinity will surely always blame the issues on that. But if you take the Xfinity router it is garbage. It is slow and barely has any distance/coverage, not to mention the $10-$15/month for that crappy modem.
NG has been phenomenal for me for the past 7 years (2 modem routers used over the 7 years), but this is the first time that I am disappointed with the lack of support. Because it appears a few of you have called but gotten little to no help.
If they just came out and said they are working on a patch and that they need more time, I would totally be okay with it. But nobody is getting a fix.
I am still in a "testing" and troubleshooting phase. In fact, I downgraded to v.2.1.3.5 this morning and I am currently monitoring the Logs for any reported LAND attacks. None so far by the way.
I suspect the router may try to perform an auto-upgrade tonight after I go to bed, but I am presently trying to determine if I can prevent this from occurring by configuring the router to use a non-existent nameserver for its DNS. My hope is that it will be unable to perform name resolution preventing it from being able to retrieve the update from the server.
I have this exact same problem that all of you are describing. I am on Spectrum Internet with CAX80 product. Router reboots every morning at 3am as it appears I am being pushed .7 FW every night despite being on the correct FW.
Every morning I have to login to the router, set a password, and re enter security questions. Then I see the banner that says "New Firmware Available" despite of course being on the latest. Been on the phone with Spectrum and chatted with them. All signals and such look good from their end. This started about 9 days ago and has happened every night since. CAX80 worked great for me for over a year prior to this.
Every morning I wake up to the same logs of errors:
Netgear, if you could please update to a new version of the firmware and address the issue we would all appreciate it!
rksalm I'm also with Spectrum and the CAX80 reboots at around that time too (3am). I have downgraded to 2.1.3.5 and 2.1.3.7 is pushed again at the same time. I have installed 2.1.3.7 over 2.1.3.7 manually several times and the issue remains. It's not an Spectrum issue... it's a Netgear issue. I believe something is not working correctly with their Firmware Update server as it does not recognize that the router is already at the latest version. My router is out of warranty and Netgear support won't tell anything unless I purchase an extended warranty. I wasted a couple hours already with them. Someone in Netgear needs to communicate with the folks that maintain their firmware update server to see if they can find and fix the source of the problem. In the meantime, they should take the update server offline (for 24 to 48 hours) to see if the folks with CAX80s complaining in this community stop experiencing router reboots.
Omnitron tamanaco FURRYe38 Netgear has an official Twitter account for support. Not sure how well they respond, but if we want attention to the issue I would encourage all of us to pile on social media. I have tweeted at them with the issue and the link to this thread to see if they get the message. I encourage all to reply, retweet, like, share, etc.
https://twitter.com/ATXGator/status/1538152962605842433
The account is NetgearHelp (@NetgearHelp)
