Provide error message when automatically signed out if a second device is used

Whenever the security setting Don’t allow attendees to be logged into more than one device at a time is enabled it will automatically log out when the same credentials are used on another device.

To prevent any frustration from attendees an error message for this would clarify the issue. 
Suggestion: "You have been signed-out of this session because your host allows sessions from only one device at a time"