CAX80 can't upload 5GHZ

Hi ernestgann,

Are you able to capture debug logs form CAX80 routerlogin.net/debug.htm page also can you run the Wireless Diagnostics on your mac and provide those logs so we can see whats happening form both CAX80 and MAC OS Wireless sides. I am wondering is this is a country code issues on 5GHz that is causing some of these problems. You can find this out by running Wireless Diagnostics.

To Run Wireless Diagnostics on Mac:

• On your Mac, quit all open apps.

• Try to join the Wi-Fi network you’re having problems with (if you’re not already connected).

• Press and hold the Option key, click the Wi-Fi status icon

  

   

  in the menu bar, then choose Open Wireless Diagnostics.

• Follow the onscreen instructions to analyze your network connection.

Let me know if any other questions.

Here's the log from the CAX80.

[1] [DoS attack] LAND Attack SPT:2190 DPT:2190, Mon May 2 19:25:08 2022 
[2] [email failed] 550 5.7.0 From address is not one of your addresses, Mon May 2 19:23:06 2022 
[3] [DoS attack] LAND Attack SPT:2190 DPT:2190, Mon May 2 19:23:05 2022 
[4] [DHCP IP: 192.168.1.199] to MAC address 48:a5:e7:37:32:41, Mon May 2 19:19:22 2022 
[5] [DoS attack] LAND Attack SPT:2190 DPT:2190, Mon May 2 19:19:05 2022 
[6] [DHCP IP: 192.168.1.205] to MAC address 62:87:01:f3:b0:99, Mon May 2 19:18:51 2022 
[7] [WLAN access rejected: incorrect security] from MAC 62:87:01:f3:b0:99, Mon May 2 19:18:51 2022 
[8] [DHCP IP: 192.168.1.205] to MAC address 62:87:01:f3:b0:99, Mon May 2 19:18:38 2022 
[9] [DoS attack] LAND Attack SPT:2190 DPT:2190, Mon May 2 19:18:04 2022 
[10] [login] from source 192.168.1.43, Mon May 2 19:14:13 2022 
[11] [DoS attack] LAND Attack SPT:2190 DPT:2190, Mon May 2 19:14:05 2022 
[12] [Time synchronized with NTP server], Mon May 2 19:13:47 2022 
[13] [DHCP IP: 192.168.1.43] to MAC address f0:2f:4b:0d:d9:9e, Thu Nov 18 21:23:11 2021 
[14] [DHCP IP: 192.168.1.243] to MAC address 46:b8:54:58:e6:19, Thu Nov 18 21:22:59 2021 
[15] [DHCP IP: 192.168.1.76] to MAC address ec:b5:fa:0e:99:d9, Thu Nov 18 21:22:37 2021 
[16] [DoS attack] LAND Attack SPT:2190 DPT:2190, Thu Nov 18 21:22:36 2021 
[17] [DHCP IP: 192.168.1.49] to MAC address d4:a3:3d:76:1c:0a, Thu Nov 18 21:22:18 2021 
[18] [WLAN access rejected: incorrect security] from MAC 0a:d5:7c:5d:05:93, Thu Nov 18 21:22:17 2021 
[19] [DoS attack] LAND Attack SPT:2190 DPT:2190, Thu Nov 18 21:22:16 2021 
[20] [DHCP IP: 192.168.1.80] to MAC address fe:91:96:26:7a:db, Thu Nov 18 21:22:16 2021 
[21] [DHCP IP: 192.168.1.188] to MAC address 70:ee:50:69:2e:70, Thu Nov 18 21:22:13 2021 
[22] [DoS attack] LAND Attack SPT:2190 DPT:2190, Thu Nov 18 21:22:12 2021 
[23] [DHCP IP: 192.168.1.34] to MAC address b8:27:eb:f5:60:3b, Thu Nov 18 21:22:10 2021 
[24] [DoS attack] LAND Attack SPT:2190 DPT:2190, Thu Nov 18 21:22:06 2021 
[25] [DHCP IP: 192.168.1.247] to MAC address 82:cd:d1:52:cc:85, Thu Nov 18 21:22:03 2021 
[26] [Internet connected] IP address: 71.231.167.191, Thu Nov 18 21:21:59 2021 
[27] [DHCP IP: 192.168.1.243] to MAC address 46:b8:54:58:e6:19, Thu Nov 18 21:21:59 2021 
[28] [WLAN access rejected: incorrect security] from MAC 62:87:01:f3:b0:99, Thu Nov 18 21:21:55 2021 
[29] [DHCP IP: 192.168.1.27] to MAC address d4:a3:3d:67:4a:cc, Thu Nov 18 21:21:41 2021 
[30] [DHCP IP: 192.168.1.227] to MAC address ee:d0:c0:37:73:22, Thu Nov 18 21:21:38 2021 
[31] [WLAN access rejected: incorrect security] from MAC f0:2f:4b:0d:d9:9e, Thu Nov 18 21:21:37 2021 
[32] [DHCP IP: 192.168.1.76] to MAC address ec:b5:fa:0e:99:d9, Thu Nov 18 21:21:36 2021 
[33] [Initialized, firmware version: V2.1.3.7], Thu Nov 18 21:21:35 2021 
[34] [DHCP IP: 192.168.1.34] to MAC address b8:27:eb:f5:60:3b, Thu Nov 18 21:21:21 2021 
[35] [WLAN access rejected: incorrect security] from MAC d4:a3:3d:67:4a:cc, Thu Nov 18 21:21:21 2021 
[36] [DHCP IP: 192.168.1.80] to MAC address fe:91:96:26:7a:db, Thu Nov 18 21:21:15 2021 
[37] [DHCP IP: 192.168.1.188] to MAC address 70:ee:50:69:2e:70, Thu Nov 18 21:21:13 2021 
[38] [DHCP IP: 192.168.1.43] to MAC address f0:2f:4b:0d:d9:9e, Thu Nov 18 21:21:10 2021 
[39] [DHCP IP: 192.168.1.227] to MAC address ee:d0:c0:37:73:22, Thu Nov 18 21:21:08 2021 
[40] [DHCP IP: 192.168.1.171] to MAC address c8:d0:83:f3:fb:7a, Thu Nov 18 21:21:05 2021 
[41] [DHCP IP: 192.168.1.219] to MAC address 40:cb:c0:c6:6f:91, Thu Nov 18 21:21:03 2021 
[42] [DHCP IP: 192.168.1.247] to MAC address 82:cd:d1:52:cc:85, Thu Nov 18 21:21:00 2021 
[43] [DHCP IP: 192.168.1.188] to MAC address 70:ee:50:69:2e:70, Thu Nov 18 21:20:57 2021 
[44] [DHCP IP: 192.168.1.243] to MAC address 46:b8:54:58:e6:19, Thu Nov 18 21:20:44 2021 
[45] [DHCP IP: 192.168.1.75] to MAC address f8:4f:ad:f4:b7:15, Thu Nov 18 21:20:42 2021 
[46] [DHCP IP: 192.168.1.25] to MAC address e8:a7:2f:11:d3:10, Thu Nov 18 21:20:35 2021 
[47] [Log Cleared], Mon May 2 19:08:42 2022

Things seem rather normal except for the repeated warnings about DoS attacks. Not sure what that's all about. Seems odd given that this is a brand new network that's only been online a few days with all new passwords.

I also generated a log file from Mac wireless diagnostics but it produced a compressed file with a folder full of smaller files. Is there one in particular I should be looking for?

Also, I can confirm that when any of my apple devices are connected to this network none of them are able to upload to iCloud, they can only download. This goes for the iPad, iPhone, and Mac. When I switch off wifi and go back to cellular everything works fine. 

Again, the strangest thing is that when I enable a VPN connection on any of my devices iCloud begins to work again on the wifi network.

Let me know what file I should be looking for in the Mac wireless diagnostics and I'll post that.

As ErnestTheGreat appears to have retired from Netgear, is there anyone else from Netgear that can pick this thread up where he left it? He sent the logs to a CAX80 product engineer and the ODM team, but it all ends there. I really need this issue to be addressed or be forced to buy another non-Netgear router because this upload block on 5GHz is getting really annoying.

We have a few people in this thread that are willing and able (and eager) to help provide you with anything you need so you can improve your product and service, it's free QA for you and we hopefully get a product that works as it should.

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.

lexneverland ernestgann tdalias 

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. 

---

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

---

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

FYI:
https://community.netgear.com/t5/Cable-Modems-Routers/New-CAX80-Firmware-Version-2-1-4-2-Released/td-p/2258008/jump-to/first-unread-message
lexneverland ernestgann tdalias 

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