No COM ports! PC doesnt recognize board!

Hello there
I have the same problem:
I installed a new board type using Git , it allowed me to use my LoRa Wifi 32 board, but I can't manage to get it reckognized by Arduino,
I can select the board, I have code examples that are linked to this board, but I can't select any COM port when I plug my LoRa device
It's a TAD annoying when I need to upload some code on it.
Could anyone try to help us ?
Thanks