NETGEAR N600 Wireless Dual Band Router WNDR3400v2 - Manual (Page 33)

genie Basic Settings
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N600 Wireless Dual Band Router WNDR3400v2
WPA2-PSK is stronger than WPA. It is advertised to be theoretically indecipherable due to
the greater degree of randomness in encryption keys that it generates. WPA2-PSK gets
higher speed because it is implemented through hardware, while WPA-PSK is implemented
through software. WPA2-PSK uses a passphrase to authenticate and generate the initial data
encryption keys. Then it dynamically varies the encryption key.
WPS-PSK + WPA2-PSK Mixed Mode can provide broader support for all wireless clients.
WPA2-PSK clients get higher speed and security, and WPA-PSK clients get decent speed
and security. The product documentation for your wireless adapter and WPA client software
should have instructions about configuring their WPA settings.