i have a wireless router DL-524, what Key Mode (HEX or ASCII) is the best protection?? And what type of Security encryption (WEP to WAP2(AES) to WPA-PSK/WPA2-PSK) is the best?? How do i configure for the best type of encryption??

The laptop is a MAC book with window XP home OS, which i want to connect to my wireless access point. The encryption used before was WEP 128bit. Now, i want to increase the encryption to the best.


Someone told me that WPA-PSK/WPA2-PSK was the best. so i change my encryption from WEP to WPA-PSK/WPA2-PSK.
The problem was that my mac book was able to connect to the access point but could not able to surf the internet.