Well check if your router sexurity is not WPA-PSK (AES) or (TKIP) bcuz GEN dosen't support that security, so switch to "WEP or None"

Or update to 5.50 GEN-D3 thats the firmware im using and my router security is WAP-PSK (TKIP) and its running fine with me and I play online with PSNabler and still works just fine with me.