Question about DJI Mavic Air 2

I also have a Mavic Air 2. I have flown up to 2000 m in the mountains with good direct visual contact without any problems. The problem can be obstacles that interfere with the connection. Or a no-fly zone according to maps stored with the Mavic, here the Mavic does not fly without permission. You can also select the frequencies in the settings.

Because the connection also has its limits. What did you expect?
The limit is supposed to prevent exactly that and ensure that you don't lose the connection...