FTPS unable to connect - SSL_connect error 1

Help & Support
1

Opus won't connect to FTPS, here is the debug output from Opus:

Initialising SSL BIO...
Opening Connection ftp.upgprintgroup.com:21
AUTH TLS
234 Proceed with negotiation.
Establishing SSL Ctrl Connection
SSL_connect error 1
TLS/SSL connection to server failed!
Connection closed
** Cannot establish SSL Connection.

And here is the output from VSFTPD on the server:

CONNECT: Client "195.171.104.234"
FTP response: Client "195.171.104.234", "220 Welcome to the UPG Print Group FTP server."
FTP command: Client "195.171.104.234", "AUTH TLS"
FTP response: Client "195.171.104.234", "234 Proceed with negotiation."

I have already check all the things in the FTP Doesn't Work topic.

I can connect fine in other programs like WinSCP, FileZilla etc. Is there anything I can do to further diagnose what is happening with Opus?

Thank you.

2

Looks like the server requires a version of TLS that we don't support.

We're currently finishing the new SFTP code. After that we plan to review the FTP and FTPS code to see what needs work there.