Thanks, Indeed that is what is happening, I will check the connection. In your opinion, if it is a connection problem, is it rather caused by a construction problem or by misuse? I'll also check shooting in 1080p, but I m not sure of that because I can get a response from the drone in 4k. After my first message, the problem appeared in a very episodic and random way, so it should not be a question of settings, Really thank you for your help.
Ps: about the first intervention and we will end the discussion on this subject here: this answer was not necessary. It's common on forums to be contemptuous towards each other, if the person was sincerely convinced to help me in this way, I thank him. But that was not my feeling. Regarding my first request, I was talking to any French people who could have answered me in my language rather than using English, it will be easier for us.