I am having difficulty activating the MAC Address Access control on my 2710N router. I have ticked the Enable Access Control box and then pressed OK. As far as I understand it, no wireless devices should now be able to access the internet via the 2710 unless the MAC code of that device has been entered in to the access control list. However, this does not happen and all devices still have access, despite the fact the Enable Access Control option is ticked.

Have I missed something ?

Thanks in advance for any helpful advice.