AP Isolation 
This setting isolates wireless clients so that client-to-client access between 
different SSIDs is prohibited. 
Note: Please save the changes after changing any of the "Wireless Mode", 
"Wireless Network Mode", "wireless width", "broadband" options – failure to do so 
may result in you being unable to see all configuration options, and may also 
result in a misconfigured modem. 
  
Wi-Fi Security   
Wireless security options used to configure the security of your wireless network. 
This route is a total of seven kinds of wireless security mode. Default factory 
setting is WPA Personal. After making changes, click “Apply” to make the changes 
take effect immediately. 
NOTE: Both 2.4 and 5GHz radios can be configured separately. Only one is 
shown below, however both have the same options except where noted.