There are consistent critical alerts on CISCO prime for only 5 of the APs stating "Authentication Request flood", and the error description is as follows:
IDS 'Auth flood' Signature attack cleared on AP 'ABC' protocol '802.11a' on Controller 'x.x.x.5'. The Signature description is 'Authentication Request flood'. This Signature attack is still detected by 1 AP. There is no more information in the details.