Go to your Aruba controller and type "show log system all | include Privacy": If you have the message below, your snmp user in Airwave does not match what is on the controller:
SNMP V3 Message parse error: Authentication parameters don't match: Possible Privacy password mismatch"
In that case, double-check that in Airwave the username, auth password, privacy password and auth protocol match with the controller. In Airwave under Manage, use "View Device Credentials" for the controller to ensure you have the right credentials.