We received more of these snmp traps. After investigating the site from layer 1 up, we have found:
No port errors
No port discards
No high bandwidth usage
No spanning-tree events
No packet loss or latency during the noted time period
No reports of network issues during this time
No routing table changes (all static)
AP's are reporting uptime of several weeks, so they did not reboot or lose connectivity
Are there any suggestions as to why this may be occurring? I also have a ticket open with HPE support trying to identify what could be causing this.