You will need:
- A high speed internet connection.
- A computer running Windows (XP SP3 or later), Mac OS X (Snow Leopard or higher), Linux (Ubuntu, Fedora, or CentOS), or something called a NAS appliance (many flavors).
- A wireless router, and a Wii U configured to use it.
Download the Plex Media Server to your computer from http://www.plexapp.com/getplex/, then install it.
Go to https://my.plexapp.com/. Click “Join myPlex” and register.