If you go into the router setup, you should be able to secure it. You'll have to check the router manual. Also you can't set up a higher security level on the router than you wireless card(s) can be set up for. Specifically, what router do you have and what wireless cards?
192.168.1.1 Admin for Router
Find or Change Your Internet Security Passphrase 1)Open the web browser that you use: Firefox,Google Chrome,IE,or Opera and type in the IP address for your router,and press the Enter key. http://www.routeripaddress.com/ < Router ip addresses... See full content