The LTE3316 can use a MAC filter for limiting the access to your WiFi-network. To use this MAC filtert you have to log on on your router using by default 192.168.1.1 User: admin and password: 1234
In the blue band-menu click on Configuration and navigate to Network > Wireless LAN > MAC Filter.
You can now enable the MAC-Filter and choose the Filter action (Deny or Allow).
You can Set up to 32 MAC-addresses in the List below.
Congratulations. You have successfully set up the MAC filter on your LTE3316