CAX80 - Any update on 5Ghz Upload issue?

Smart connect is NOT enabled

Lets try it enabled - didn't fix it for others when they tried it looks like - i appreciate the suggestion but i don't want to duplicate what hasn't worked elsewhere in these threads.

2.4 - Channel select is auto, current is 4

5Ghz - Channel is set to 36

Lets try channel 1, 6 or 11, not channel 4. - 2.4Ghz works perfectly fine - no need to change that channel It's the only frequency it will upload properly on. It's the 5Ghz freq that is the problem.

When i selected smart connect, it says it's going to overwrite my settings with the 2.4G settings - why would i want to change from up to 4800Mbps down to 1200Mbps? That makes no sense - I would have just bought a cheaper modem.

You mis understand that. 2.4Ghz max connection rate for any wifi device connecting to it is 1200Mpbs.

5Ghz, you can have any devices that support it, connect at 4800Mpbs. Smart Connect just puts both frequencies into on SSID named broadcast is all. Smart connect enabled or disabled. OK

https://www.netgear.com/images//datasheet/networking/CableModems/CAX80.pdf

Also what are the configuration settings under Advanced/Advanced Settings/Advanced Wireless? 

Wireless Advanced Settings (2.4GHz b/g/n/ax)
Fragmentation Length (256-2346):
2346
CTS/RTS Threshold (1-2347):
2347
Preamble Mode

Long Preamble
The wireless signal is scheduled to turn off during the following time period:
Period Start End Recurrence Pattern
Add a new period Edit Delete

Wireless Advanced Settings (5GHz a/n/ac/ax)
Fragmentation Length (256-2346):
2346
CTS/RTS Threshold (1-2347):
2347
Preamble Mode

Long Preamble
Period Start End Recurrence Pattern
Add a new period Edit Delete

WPS Settings
Router's PIN:

Has a factory reset and setup from scratch been performed since FW was updated? Everything else works on the device. Not factory resetting when i can just fix NetGears issue by changing to 2.4Ghz when i need to upload, that way I don't have to mess with anything else on my network. I have too many static IP's and configs for specific devices on my network to go through that process unless the router burns to the ground and forces me to.