digging further, it appears that my problem is VERY similar to an old and now fixed issue about "Android hotspot requires restarting for ESP32 to reconnect or fails: auth -> init (200)" (see https://esp32.com/viewtopic.php?t=8769&start=40)
The only difference is my using of a Rapsberry Pi Access ...

Hi there!

I am using mesh_lite on Espressif DevkitC board.
My app is using a root node and several child nodes. The root node connects to the AP interface of a RaspberryPi board.
All works well until I press the reset button of the board and then at reboot the STA of of the root node fails to ...

Hi,
I'm new on this ESP32 Forum/ESP-MDF
I am developping a mesh_lite application and would like to know if this is the right place to post questions about mesh_lite or if there is a dedicated sub_forum?

Thanks a lot,
ojcrd_fr