Reply
Talon2020
Aspirant

CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

Ever since this firmware update was pushed to my device late Nov. my CAX80 has begun dropping connection and LAN almost hourly or more often. It seems to be getting worse day by day. I’ve tried resets, power offs, and now even tried new coaxial and cat cables, different lan port and even a brand new motherboard. Nothing fixes this issue and it’s making my connection useless for day to day tasks.

I have now discovered a new update was pushed to my device right when the issues began. I got this Router/modem combo in June and never had a single issue or disconnect. Now after this update the device is useless and tech support wants me to pay to get help with something you broke! How do I roll back? Is Netgear aware of this issue and planning new firmware soon to fix this.
Message 1 of 12
plemans
Guru

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

Do you have a screen snip of the cable connections page and the logs? That can help check the connectionw it the isp as well as to see if the isp is triggering the reboots. 

CM2000-> RAX200-> GS716v2-> EX8000
Message 2 of 12
FURRYe38
Guru

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

Has a factory reset and setup from scratch been performed since last FW update?


@Talon2020 wrote:
Ever since this firmware update was pushed to my device late Nov. my CAX80 has begun dropping connection and LAN almost hourly or more often. It seems to be getting worse day by day. I’ve tried resets, power offs, and now even tried new coaxial and cat cables, different lan port and even a brand new motherboard. Nothing fixes this issue and it’s making my connection useless for day to day tasks.

I have now discovered a new update was pushed to my device right when the issues began. I got this Router/modem combo in June and never had a single issue or disconnect. Now after this update the device is useless and tech support wants me to pay to get help with something you broke! How do I roll back? Is Netgear aware of this issue and planning new firmware soon to fix this.

 

My Setup (Cable 1Gbps/50Mbps)>CM1200 v2.02.03(LAG Disabled)>RBK853 v3.2.17.12
RBK50 v2.7.2.104(WW) Circle Enabled
Additional NG HW: C7800/CM1100/CAX80/CM2000, Orbi CBK40, R7800, R7960P, EX7500/EX7700, XR450 and WNHDE111
Message 3 of 12
Lurksalot
Apprentice

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

Oddly what I have observed after the ISP pushed FW update is that I can no longer get the device to reset to factory defaults. Neither of the given methods to perform a factory reset work, 1) pin hole on back of device, nor 2) "Revert to factory default settings" option.

 

Thanks.

Message 4 of 12
FURRYe38
Guru

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

Try disconnecting the coax cable then soon after press the reset button and hold for 15 seconds then realease...wait for the front LEDs to all turn off. Then plug the coax cable back in...


@Lurksalot wrote:

Oddly what I have observed after the ISP pushed FW update is that I can no longer get the device to reset to factory defaults. Neither of the given methods to perform a factory reset work, 1) pin hole on back of device, nor 2) "Revert to factory default settings" option.

 

Thanks.


 

My Setup (Cable 1Gbps/50Mbps)>CM1200 v2.02.03(LAG Disabled)>RBK853 v3.2.17.12
RBK50 v2.7.2.104(WW) Circle Enabled
Additional NG HW: C7800/CM1100/CAX80/CM2000, Orbi CBK40, R7800, R7960P, EX7500/EX7700, XR450 and WNHDE111
Message 5 of 12
Talon2020
Aspirant

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

So I did a factory reset by unplugging the coxial cable, and hitting the reset button with a paperclip for 15 seconds. It forced me to do a complete reconfigure of the modem/router. It definitely seems to have helped, the disconencts went away for awhile about a day, but I am again still getting them radomly, just far less often (a few a day). Unfortuantely it just disconnected for a second, and then immediately reconnected. It's very frustrating that this is now happening after 5 months of 100% no issues and it only started after that firmware was pushed to my device. 

Message 6 of 12
plemans
Guru

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

If you've only had it for 5 months, you should be able to rma it if its applicable. 

do you have screen snip of the cable connections page to check signal?  Take those and post them back here. 

If you have any splitters, amplifiers, or attenuators in line, I'd remove them.  

Potentially even @vkdelta could help

CM2000-> RAX200-> GS716v2-> EX8000
Message 7 of 12
plemans
Guru

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

You don't happen to be on Cox do you?
That's tended to be where I've seen the most issues with the CAX device.
CM2000-> RAX200-> GS716v2-> EX8000
Message 8 of 12
Talon2020
Aspirant

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

I'm on Comcast/Xfinity. 

Message 9 of 12
Talon2020
Aspirant

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

Here is a snip of the cable connection. I cannot enable that "Enable Extended Upstream Transmit Power". I click apply but it just turns off when the page refreshes. I figured I would try it and see if it helps since I'm getting continual disconnections again. 

Message 10 of 12
plemans
Guru

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

You've only got a single downstream channel locked. 

And only 1 even showing. Even when mine haven't been locked, they still usually show. 

that's unusual. 

Have you opened a support case with netgear?

CM2000-> RAX200-> GS716v2-> EX8000
Message 11 of 12
Talon2020
Aspirant

Re: CAX80 LAN disconnecting on firmware 2.1.1.4 — Never had an issue before this update.

I will do that. I might also have to give Comcast a call since this problem doesn't seem to be resolving on it's own over time as intermittent connections issues seem to in the past. 

Message 12 of 12
Top Contributors
Discussion stats
  • 11 replies
  • 364 views
  • 1 kudo
  • 4 in conversation
Announcements