PROBLEM
MAC address filter list does not block other MAC addresses from associating.

RESPONSE

SOLUTION
The MAC address filter must be enabled by:

1) Enter SETUP menu of the AP web interface
2) Select the "Advanced" link for the "AP Radio: Internal"
3) Select the "Disallowed" buttons for the "Default Unicast Address Filter"
4) Return to the SETUP menu
5) Select the "Advanced" link for the "AP Radio: Module"
6) Select the "Disallowed" buttons for the "Default Unicast Address FIlter"