XR500 Constant 100% CPU

What is all connected to the router when this happens? Brand and model #s please of devices connected.

Do you want wired and wireless ?

Wired 

• Arlo Hub
• Hive Heating Hub
• My PC - Homebuilt - Built on MSI MAG X570 Tomahawk WIFI Motherboard
• Lenovo Thinkcentre M710q - Proxmox Server running HomeAssistant

If you need every wireless device that is going to take a while to compile.

As I said above when I disconnected everything the CPU% stayed high.

If you can wireless when you have time. 

I'd go for a factory reset and setup from scratch. Also power OFF the ISP modem for 30 seconds then back ON.

I'd get a cooling fan under the router as well. 100% CPU usage would cause them to heat up and get hot. Having some cooling under the router will help keep CPUs cooler.

I keep one of these under any router I have online:

https://www.amazon.com/Thermaltake-Massive-Notebook-Cooling-CL-N014-PL20SW/dp/B00IGSATZY/ref=sr_1_3

or one of these: 

https://www.amazon.com/gp/product/B09FF5CRMD/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Thanks for the suggestions.

I think part of my issue with this router is DumaOS seems so locked down you can't see what's going on under the hood. At least if could SSH into it I could see what processes are doing what to try and narrow things down a bit.

Think I'll try the factory reset tomorrow and see how that goes.

If not I might flash OpenWRT onto it and try that out.

Something to try as well:

https://community.netgear.com/t5/Nighthawk-Pro-Gaming-Routers/NOTICE-NETDUMA-Beta-Firmware-for-the-NETGEAR-XR450-500-Router/td-p/2320422/jump-to/first-unread-message

Thanks again.

So after about 4 days after a full factory reset and just running a basic config all seems to be ok.

I'll run it for a few more days before I start making any config changes.

Took a bit to get it to factory reset. Pushing the reset button for 30s wouldn't work but doing it through the interface did.