Here is a step-by-step video tutorial if that helps make it clear you did follow all the steps. Are you already using port 443 for anything else?
A. What do the logs say as the error?
B. To make sure you configured your SSL properly, we recommend testing your complete workflow with playback of a stream with a secure playback URL and the player of your choice using the instructions for testing playback in an article that applies to your specific workflow.
In the playback URL, your StreamLock certificate hostname is used as the address or domain name. For example, to play the installed sample.mp4 file with the default vod application, the HLS playback URL would be as follows:
C. You can try a different port if you want to see if it was a Streamlock config issue or an issue specific to port 443.To test this, you need to go in to Vhost in Engine Manager, hit edit and remove the 443 port. Then re-start the server.
Go back into same place ( VHost) and click edit again only this time add a different port like 4043. Anything you want as long as it’s different from your http port. (You’ll need to have the new port in your url of course instead of 443 as you listed above.)