Why can i only access twitter on my wireless device if my router is unsecured?

[epro]

I cannot access Twitter on 2 android platform tablets unless I unsecure my router. What can I do besides that?

 

[Emerald]

what type of wireless security mode are you trying to use?

 

[epro]

what type of wireless security mode are you trying to use?

WPA-PSK [TKIP] + WPA2-PSK [AES]