Thank you very much for your answer.

I've tried to change the min security level and it works fine.

Hello I'm developping an application with a raspberry pi 3 as AP. I installed the latest Raspian Os and I don't use dchpcp but NetworkManager. I use a FireBeetle-ESp32 board. I also tested a Wemos Lolin 32 board I've made a simple test program to try to connect When I compile with the program with t...