Can you pair the remote to another dji and see how that drone does. Either way, I think you have an antenna wire problem, have you hard landed enough to dislodge one of the landing legs? its either the controllers or the Drones. how far do you...
Here is the update. I just tried it again in an area where the drone and RC are visible directly and in the distance (I'm sure or convinced that the connection must be phenomenal because they are directly visible) and the same thing happened...