Nighthawk MR 60 devices dropping

[Kirkv1]

Has anyone had issues with devices just dropping off of the mesh network and they cannot hook back up?

I have one of my Sonos speakers that dropped as well as 2 of my Amazon puck devices drop all about the same time.

my Amazon Show still functions and 2 of my Sonos speakers still function except one cannot be found on my Sonos app all of the time?

it leads me to think maybe a update has screwed things up? It just makes to sense that a few devices decide to drop into oblivion!

Thanks 

Kirk