Messages

We have random ending of captive portal sessions, mostly from Android devices.  The captive portal log shows a message of "captiveportal: mac address changed fro session [session ID]".  No further information is provided and we cannot determine what is causing the captive portal to report the mac address has changed as it certainly has not.

It is not a critical issue, but certainly annoying to those that have it happen.  Any help would be appreciated.