AirLive WH-5420CPE - Manual (Page 58)

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WPA2-PSK (AES)
Enter the Pre-shared Key to initiate WPA2 security. All devices try to access the network
should have the matching encryption key.
Pre-shared Key: This is an ASCII string with 8 to 63 characters. Please make sure that
both the WH-5420CPE and the wireless client stations use the same key.
Encryption Type: There are two encryption types TKIP and CCMP (AES). While CCMP
provides better security than TKIP, some wireless client stations may not be equipped with
the hardware to support it.
Group key Life Time: A group key is used for multicast/broadcast data, and the re-key
interval is time period that the system will change the group key periodically. The shorter
the interval is, the better the security is. The default is 300 sec.