The WiFi settings are accessible through the Android Settings Menu on the tablet.

To access the menu, press on the 6 dots icon : 

Then press on the settings menu, a cogwheel icon :

Finally,  you can set the WiFi configuration by pressing the WiFi Icon 

Never change the Wifi Settings through the “Advanced Settings” menu because you may face some issues like :

• Head and Tablet on a different network
• No connection between the Head and the Tablet
• Your applications might not be fully operational