Controller Status
At the communications topbar, you can check the state of the communications controller just below the connection icon.

There are the following possible states:
- Not initialized: The controller has been added but changes have not been saved yet.
- Waiting for endpoint: The controller has not been able to connect, and now is retrying to connect.
- Connected: The controller is connected and ready to be used.
- Stopped: The controller has been manually stopped.