Hello Tom,
ePMP devices support a feature to allow device configuration to be reset by using a power on/power off cycling of the PoE. Unfortunately, power outages or unstable power supplies could mimic this power cycling and end up resetting the configuration of the devices. There is a way to disable this feature from both GUI and cnMaestro. Please refer to the links below for more information.
Also, if you use the main ePMP forum (http://community.cambiumnetworks.com/t5/ePMP-2000-and-1000/bd-p/forums_epmp_1000) you will probably get faster responses for ePMP related issues from our community.
Welcome to the forum!
Regards