Dear colleagues, I'm using Directory Opus 10 Pro and when I try to connect to an SFTP server I get the error "SSH: ssh_init: error during SSH connection setup 0". Accessing the same server with WinSCP the connection via SFTP works fine. What could be the mistake I'm doing ?

The FTP log (default menus: FTP / Display FTP Logs) should give some more detailed information.

It's possible the SFTP server needs newer versions of the protocol than Opus 10 supported, in which case Opus 11 may work with the site while 10 doesn't.

Firewall software and the other issues mentioned in the FTP Doesn't Work FAQ may also be relevant.