There are now two ways to join and configure WiFi. If you have no other connection, you should do it from the unit's own screen and buttons. But if the unit has another connection already (like LTE) and you are only adding WiFi, you can also do it from the portal. Outlined below are how to do both methods.
From The Unit
WiFi configuration can be performed directly on the LiveU Solo unit itself. The status of the WiFi network is indicated by the color of the icon (Gray: disabled; Yellow: Enabled, but not connected; Green: Enabled and connected to active network).
To configure LiveU Solo using the user interface:
Navigate to the Interfaces option in the Home screen using the Up and Down buttons on the joystick.
Select WiFi → Select Network.
The unit scans and displays the available networks.
Select a network and press Connect.
From the Portal
Click on APN Settings in the header section of a unit dashboard view. From the list of connections, click on WiFi. It takes a few seconds to populate the list, then from there you can join, leave, and more.