Sidehistorik
I experienced that today - late at night, I was unable to control all lights (I have 116 devices), and my 2 Hue Bridges (Inside Lights and Outside Lights) all showed this:
...
Did nothing at all
Restore a Bridge
I use http://www.all4hue.com/ to take backup of the Bridges.
I just got some double entries, and the restore seems to be on a factory resat bridge.
I tried the above a few times, and nothing changed.
...
Point being: Dont panic to soon ans start resetting You bridge(s), have some patience and take the power off some times over a time period. Setting up everything again can take way longer time if You have many devices.