Topic: Uses TLS 1.0

If you are trying to connect to the MACU ofx server with a relatively new version of openssl s_client, you will need to specify the -tls1 option as their server does not support TLS 1.1 or 1.2, which is unfortunate.

For example, I am able to connect using this:
openssl s_client -tls1 -showcerts -connect