Connect a USB Keyboard and mouse to Minix
Left Click the mouse button anywhere on the screen
Left Click the mouse button on Settings
Left Mouse Click on Wifi Settings
Configure wifi with your network wifi details and Save the settings.
Right mouse click a couple of times to exit the menu
If you can see the Identity being displayed (red area below), that means that the screen should be connected to the network.
If it doesn't, try connecting the minix to a mobile wifi hotspot and see if it can connect.
If the identity is shown when connecting to mobile wifi hotspot but not with your local network, there's something that's blocking its access through your local network. you need to contact your Network admin