SFTP connections are not persistent during session
To connect to my SFTP server, I go through a firewall that limit number of connections from an IP address. When I use VLC, it reaches that limit because everytime VLC wants to bring back informations from my SFTP server a new connection is done and VLC can't go further.
With another application, typically a file browser, only one connection is made for all the session so there is not this issue and it's technically possible to have one connection for a session.
If I delete the limit in firewall, VLC works fine but it's less safe. So it's a security issue for using vlc with an sftp server.
It's the same problem here : https://forum.videolan.org/viewtopic.php?f=35&t=134029&hilit=sftp+connections+session