So I have the same issue on CUCM & Unity Connection servers in one site. creating a Backup Device fails with this error :-
"Update failed : Unable to access SFTP server. Please ensure the given SFTP server is a genuine SFTP server"
I am using Filezilla SFTP on a win2008 server on the network. I have created my SFTP user, disabled the Windows Firewall. I can access the SFTP server from a cmd prompt on my laptop which is on the domain so I know the server is up & listening fine. Both CUCM & Unity Connection can ping the SFTP server.
Thanks in advance.
