It won't appear in XOGO Manager because of the hidden SSID, but there is an easy workaround. Just set up a mobile hotspot (i.e. on your iPhone or Android) with the same SSID and password pair. Then connect the player to this network using XOGO Manager, in order to save credentials onto the XOGO Mini. Now you can shut down the hotspot, and the player will be able to communicate with the same SSID/password pair to your hidden wifi network.