we have to set und unset some more items on the "Advanced settings" page. You will get the complete page when you resize the application window at the bottom line.
I can't say why the wifi item is activated and filled in. I think that this setting is to connect to the existing wifi at home, in the school or somewhere else. This is not the setting for the wifi that is send by the MoodleBox. So the wifi item should be deactivated.
The language setting is needed to get the correct keyboard layout if we log in directly to the MoodleBox with a monitor and a keyboard connected.