There are three different states of RemotePC, which you can identify by the color your RemotePC tray icon turns into.

 

States

WindowsMac
Remote Access Enabled Indicates your computer is ready for remote session.  Indicates your computer is ready for remote session
Remote Access DisabledIndicates your computer is disconnectedIndicates your computer is disconnected
Remote Access In SessionIndicates your computer, which is configured for remote access, is connectedIndicates your computer, which is configured for remote access, is connected