Chromecast does not load apps unless "cast"ed from a device on the same network.
To restart piSignage, upon boot
- Use a Chrome Browser either in PC or smartphone from the same network
- Login at pisignage.com/login
- In the top menu bar at the right hand side you will see a Chromecast icon (install Chromecast extension if you do not see chromecast icon)
- Click the icon and select start casting
- piSignage software will be downloaded and a ID will appear on the TV
- Register the ID at pisignage.com/players if not done already