Update - Although the user-name is still case sensitive on the controller - ArubaOS 6.5.3.4 has removed case-sensitivity for AirGroup and resolved the issue that was affecting our students that brought this issue into light ("student" couldn't discover devices registered in ClearPass by STUDENT/STUdent/etc).
![AirGroup-Case-Sensitive.PNG AirGroup-Case-Sensitive.PNG](https://higherlogicdownload.s3.amazonaws.com/HPE/MigratedInlineFiles/f1f6043eeb764118a29b61f736e52644_20aece4427d74f0a888e5cfccc4adc99)