I'm having a issue where the switch will loose connectivity and allude to not having power IE. no lights on the switch at all. When I check power it is correct including current draw. Most of the time if the unit is power cycled it will come back to life and operate for random times until the original problem happens again. On the rare occasion it will even come back to life on it's own. Could this be a surge issue because the unit does have ups in a bare bones battery pack but no actual surge protection. Or should I be looking at replacing the switch. Any advice would be greatly appreciated.