Thank you for the post.
“Is the "Require Secure Connection" same as being on?”
If the question is about checking the box for “Require secure connections” in the Admin Console (Database Server > Security), then yes that is the equivalent of turning on SSL.
“Use Secure Sockets Layer (SSL) to encrypt data passed between FileMaker Server components and FileMaker Pro, Go, and WebDirect clients. Progressive downloading allows clients to use interactive content as it is being downloaded. Progressive downloading uses unencrypted HTTP connections, even if the Require secure connections setting is enabled. Restart Database Server to apply a change to these settings.
Warning: The standard FileMaker SSL certificate installed by default on this server is available for test purposes only.
A custom SSL certificate is required for production use. Obtain a custom SSL certificate from a Certificate Authority (CA) supported by FileMaker.”
If I misunderstood the question, please let me know.