Help me secure my TCP Server with SSL -- 3

I have a project where there are multiple devices on a network. There is a process where a device becomes a group owner (TCP Server) and the rest of the devices become clients (TCP CLient) and they end up communicating with each other. The issue right now is that I have to secure the network connections with SSL and I lack enough information to be able to implement this functionality.

My code work currently without SSL perfectly but the moment I try to enable it, I'm getting issues with connections between the devices. So once the devices on the network all communicate through SSL the project is complete.