[ticreauttate]

To fix a security vulnerability the way SSL is handled has been changed, so this maybe the reason you can't access your server over SFTP, have a read of https://forum.kodi.tv/showthread.php?tid=331918

 Thats about FTPS, i'm using (the by far superior part of ssh) SFTP...  

SSH is the worst protocol for media streaming. It simply wasn't designed to do that. 

Actually, SFTP worked / works fabulous at least for me streaming from my bedroom server that's running Cloudron (www.cloudron.io) and thus doesn't have any other way of connecting...