Being able to access your content at anytime and from anywhere is one of the strongest features of Plex. Doing so is very straightforward:
- Successfully enable Remote Access for your Plex Media Server
- Sign in to Your Plex Account in your Plex App
That's really it. If your Server is connected and you're signed in with the same Plex account in your Plex App, then the App should see and connect to your Server.
You'll also want to make sure that you've set your Plex App's streaming quality to an appropriate level.
Related Page: How do I choose the right Streaming Quality?