When I connect to a particular SFTP server with Filezilla, it informs me that the host key is known and do I want to accept trust the host (and store the key in the cache) and connect anyway? I accept and connect via SSH2 on port 22 successfully. Great.
With FTP Voyager using the same exact connection settings and credentials, I only get this:
STATUS> Negotiating SSH2 session with server...
STATUS> Client Identification: SSH-2.0-FTP Voyager_16.2.0.328
STATUS> Server Identification: SSH-2.0-OpenSSH_7.4
STATUS> Initializing key exchange process...
ERROR> The server has unexpectedly closed the connection.
What am I missing?