Riboflavin

I installed the Plex container and everything seems to be up and running properly. I've opened the appropriate port and enable remote sharing, however despite some clients working I can't seem to connect via app.plex.com because it says it is unable to connect securely (I have SSL set to preferred). I think this must be some sort of problem with my cert, or the lack of a cert generated by Plex or something. If I access my server IP https://192.168.50.11 I can access the Unraid UI (after ignoring the self signed cert error). However if I try to load the Plex UI over SSL like https://192.168.50.11:32400/web I Just get an instant failure "192.168.50.11 unexpectedly closed the connection. ERR_CONNECTION_CLOSED". I'm assuming this is why Plex is saying that it can't establish a remote connection securely but I guess I'm not really sure. Any tips or advice would be appreciated.