Error: The connection was closed by the remote host

[dgudkov]

Linking a topic with a similar error:

SFTP SSH identification string error

Hi, We try to connect to an external SFTP server from our EM server, but get an error "the server response does not contain an ssh identification string" when trying to connect from the connections. Connection to the SFTP server from Filezilla (from desktop) works however! Others SFTP connections work from de EM server. Any idea how to fix this?