Just installed the new release firmware. 10 minutes later the 5ghz wireless disappeared. Non 5ghz works fine still. I'm done with this overpriced POS router and returning it.

I'm experiencing this same issue with my AX6000 of the 5GHZ stopping working. It's happened 3 times now, and I have to reboot the router to get it to work again. Not what I'd expect for something...