03-23-2015 07:17 PM
03-24-2015 08:28 AM
Search for the mac address in Airwave and click the client. You´ll be able to look at "last seen" and depending on what kind of authentication you use you might be able to find a username associated there.
Aruba: ACMX #537 ACCP | CWNP: CWNA CWDP CWSP