EnGenius Technologies ENH500 - Manual (Page 43)

7.2.5 WPA
Security Mode Select WPA from the drop down list.
Encryption Select Both, TKIP or AES for Encryption type.
Radius Server Specify Radius Server IP address.
Radius Port Specify Radius Port number, the default port is 1812.
Radius Secret Specify Radius Secret that is given by the Radius Server.
Group Key Update
Interval
Specify Group Key Update Interval time.
The IEEE 802.11n standard does not include WEP/WPA-PSK/WPA-PSK TKIP
security mode. To comply with the standard, when you use the above encryptions, the
wireless transmit mode will drop from 802.11n to 802.11a.