My nanoHD reboots frequently with current firmware. Sometimes it needs readoption, sometimes a manual reset to be readopted. The AP AC Pro seems less affected.
Thanks for that input. My AP AC Lite has been absolutely rock solid so I wouldn't want reduced reliability; it's the reason I went with Unifi in the first place. Not that it matters; no chance I'll be going with Unifi in the future.
Yeah, and thanks to your comment it actually got me thinking that I can (at least temporarily) mitigate my current situation by taking the nanoHD out of the loop entirely, as I do have another spare AP AC Pro in my closet. I also got the nanoHD because of extra MIMO speed (among other things, it's feeding my home office setup wirelessly), but the egregious loss in stability is not worth it.
Downgrade your nanoHD back to 4.x firmware. That way you get to keep your MIMO speed with stable device, you will only lose WPA3 support (if you use it, it is a new thing in the latest controller).
My FlexHD is perfect on my USG, so ymmv.
I was on the fence about buying some ubiquiti stuff. Now there's little chance. Do you have any recommendations for competing products?