Nighthawk RS700s 5ghz always disappears. 6 months now.

Nighthawk RS700s 5ghz always disappears. 6 months now of it happening. Once or twice a week I have to reboot the router.

2.4ghz and 6ghz never have disappeared.

I always keep the firmware updated. I don’t use smart connect. I keep all frequencies separate as I have a smart home that utilizes a lot of 2.4 devices.

I have seen other threads regarding this model with the same issue.