This is normal. A 3CX update restarts the 3CX services, and the connection between the JEDWare integration and the JEDWare cloud dies with them.
Restart the JEDWare service and JEDWare is back within seconds.
Still disconnected after the restart? The update may have overwritten the Nginx configuration. Why is my integration status No connection shows how to put the JEDWare include back.