Webdav et https sur Windows 10

Thanks for your response.

I use //IP public address livebox/shared folder
And on the livebox , I has mapped the internal port 443 on the IP internal NAS
I proceed as for the port 80 on the livebox, on the PC windows10 the syntax command for Http is http://IP public address livebox/shared

folder , in this case it is working well

for Https it replece http by https  https://IP public address livebox/shared folder and then i have  the message "Echec d'ouverture de session sur le réseau"

Best regards