I'm going through security appliance event logs and I need some help.  Here is an excerpt of a log:   Time(EDT)                 Client                           Event Type                          Details Jun10 19:16:50        03:cc:5c:a3:a1:83        Domain Authentication         user: xxxxxxx   If I look at the details of the Client, it shows that the device hasn't been seen since May 13.  I'm not sure why I have event logs showing current domain authentication for clients that haven't logged in for a month.     ... View more