Unable to establish FTPS connection with curl: "wrong version number" error across all TLS versions

I've looked at the related issues, but none of them have solved my issue. I'm trying to transfer files via FTP using curl to a server in my DMZ from an FTPS server on an EC2 server running vsftpd. $ curl ftps://ec2-myserver.compute.amazonaws.com --verbose --tlsv1.1 * Rebuilt URL to: ftps://ec2-myserver.us-east-2.compute.amazonaws.com/ * Trying ip_addr... * TCP_NODELAY set * Connected to ec2-myserver.us-east-2.compute.amazonaws.com (ip_addr) port ---- (#0) * successfully set certificate verify locations: * CAfile: /etc/ssl/certs/ca-certificates.crt CApath: /etc/ssl/certs * TLSv1.1 (OUT), TLS handshake, Client hello (1): * error:1408F10B:SSL routines:ssl3_get_record:wrong version number * Closing connection 0 I can get the file connection FTPS from Filezilla on a Windows server. I am getting the same error in every TLS version. I've tried enabling ssl3 on the vsfpd server, but it didn't solve it.