Waiting For Vehicle Connection

Hi, i’m new in drones,
I’m trying connect for first time a drone based on pixhawk, when open qground control there’s a legend Waiting For Vehicle Connection, but the pixhawk is already connected and the letds are blinking


QGroundControl is waiting to connect to the Vehicle via USB or telemetry. The vehicle may already be detecting GPS and whatever as you have seen but is not connected to QGC.