Symptom
ISR 4k silent reloads with reason PowerOn
Conditions
System is functioning properly and suddenly power cycles. This may occur even if other systems on the same AC outlets do not experience issues.
Further Problem Description
For this particular case, an internally generated voltage rail on the router experienced an undervoltage condition and caused the system to power cycle.
Other causes may exist for a silent power-on reload. It is critical that 'show tech' be captured right after the failure and analyzed by Cisco before determining if a system may have experienced a similar issue.
If a fault is due to a similar undervoltage event and persistent then an RMA may be considered.
