One Problem When Trying to Set up a Wireless Network?

When I first set up my wireless network, everything is fine except for the fact that it was unsecured. When I changed the ssid, pword, Security-mode to WGA Personal,tkis, and put in that pphrase, I had to reconnect it like I was supposed to. I did and it said it was secure but I realized I wasn't getting Internet no more! How do I fix this?