CAX80 can't upload 5GHZ

I cannot upload on the 5ghz network with the cax80 modem.  Browsing websites/small data transfer is fine. But large files (wetransfer, onedrive, google drive) does not work.

Just had a comcast tech out.  No issues with the line.  Modem reprovisioned.  Etc.

Factory resetting modem does not resolve.  Modem has latest firmware.

What Firmware version is currently loaded?

Is Smart Connect enabled? 

What channels are you using?

What devices do you have connected to the 5Ghz radio?

This is a known issue:

https://community.netgear.com/t5/Cable-Modems-Routers/CAX80-can-t-upload-5GHZ/m-p/2158905/highlight/true#M34386

tdalias 

Is it still an issue for you? There's another thread about this (CAX80 can't upload 5GHZ network) and after providing logs and what not nothing happened. That thread is closed now, and I just bought a new modem router because I gave up on it, but decided to give it one more try and test run uploading on 5GHz on several OS and various browser and I have encountered zero issues now.

My guess is that they have fixed it somehow, I have no other explanation. I am still keeping my new Motorola modem router at end, but think of returning it if I keep a smooth 5GHz upload.

FYI:

https://community.netgear.com/t5/Cable-Modems-Routers/CAX80-can-t-upload-5GHZ-Beta-FW-Available/m-p/2240609

I am having this same exact issue.  Xfinity has been out twice to check all the lines and no issues there.  I have also factory reset my router and nothing changed.  This started happening mid August 2022. I can email attachments, but I can't even upload a small screenshot to Slack unless I use 2.4G or the wire

What FW version are you using? 

NG is aware of the problem. Were hoping that next FW version will resolve this. I tested a beta and it fixed this issue however, presented a different problem on my modem which I had to send in my modem to get it fixed so I don't recommend using the beta version. I don't know when new FW will be forthcoming. 

Just what works best for now. 

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AshleyTQ wrote:

I am having this same exact issue.  Xfinity has been out twice to check all the lines and no issues there.  I have also factory reset my router and nothing changed.  This started happening mid August 2022. I can email attachments, but I can't even upload a small screenshot to Slack unless I use 2.4G or the wire

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Yeah I have a workaround so I'm not too fussed, but I work from home so it has caused me a number of issues.

I have v2.1.3.5 and it says there are no updates available

Ok. Keep whats loaded for now. Hopefully NG will come out with something. No idea when though. 

Thanks for your help and time! It's just really annoying when I bought my router a little over a year ago and spent a lot of money on it.

Understand. Will keep on them about this. From what I know, there is a fix, just needs to get into good working FW. 

Keep an eye on the NG download page or here in this forum. 

Thanks again!  I work in customer service for a software company so I get it 🙂

Thanks for understanding. We get the users frustrations as well. 😉

I returned the Motorolla router/modem and of course afterwards my upload issues started again on 5GHz. Good to know, however, that there will be a fix soon. Is there a way to be automatically notified when a new FW is available?

Not that a I know of. Keep an eye on the NG download page or here in the forums. 

Thanks, will make a weekly reminder to check.

AshleyTQ lexneverland 

https://community.netgear.com/t5/Cable-Modems-Routers/New-CAX80-Firmware-Version-2-1-4-2-Released

Thanks so much for sending this over, but it looks like they may have rolled it back.  I can't access the link and my app is still telling me there is no update available.

Link is good. This update has to be manually installed using a PC and web browser. 

So weird, this is what I get.  But I am on a Mac and not a PC if that makes a difference

I logged into routerlogin.net and tried to update from there and nothing was available

I also downloaded Firmware Version 2.1.4.2 https://www.netgear.com/support/download/?model=CAX80

and looked for the file ending in either .img or .chk per https://kb.netgear.com/23960/How-do-I-manually-update-the-firmware-on-my-NETGEAR-router

But I only have Release Notes and CAX80-V2.1.4.2.bin in the zip file

Interesting.

The .bin file is what you use with a web browser when connected to the CAX web page and using the FW update web page to select this .bin file from your PC to upload to the router side of the modem. Do not attempt to open the .bin file. It gets sent thru the modems web page using the web browser. 

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AshleyTQ wrote:

So weird, this is what I get.  But I am on a Mac and not a PC if that makes a difference

 

I logged into routerlogin.net and tried to update from there and nothing was available

I also downloaded Firmware Version 2.1.4.2 https://www.netgear.com/support/download/?model=CAX80

and looked for the file ending in either .img or .chk per https://kb.netgear.com/23960/How-do-I-manually-update-the-firmware-on-my-NETGEAR-router

But I only have Release Notes and CAX80-V2.1.4.2.bin in the zip file

 

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Thank you and please excuse my ignorance as I've never had to do this before. On http://www.routerlogin.net I go to Advanced -> Router Update and browse for the .bin file and upload it here?

When I click the "Check" button above Browse it tells me "No New Firmware Version Available."

Yes, Select the browse button and navigate out to where the .bin file is located. Once selected, press the UPLOAD button. 

Thanks so much! I'll try that later today 

I really appreciate all your help on this

👍

Hi, I was wondering if this solution worked for the others on this thread. I am also experiencing this issue and made the update to V2.1.4.2 and it still doesn't seem to be working. Does anyone have any other advice?