Once a week I write to explain to a customer how to Disable Wireless MAC Filtering when they have locked out critical or all devices and VM Connect either can't connect to the Hub or fails to display the list of blocked devices.
If you must do this, connect to the Hub 5 at http://192.168.0.1 and in the menus go to Wireless >>> Security >>> Wireless MAC Filtering.
Just be aware that Wireless MAC Filtering is not an effective tool for blocking current mobiles & computers, if an old fellow like me can evade it in a blink your kids will have it cracked in hours or days.
Education first, enforcement only as last resort.