Can't connect PS3 to Internet after changing WEP key.?

May be...

I changed my router's WEP key to a more secure WPA2 key. When I turned my PS3 on, of course it couldn't connect to the internet. But when I try to go into network settings, all I'm getting is an endless loading screen. It's a blank screen with the XMB waves and the loading animation in the upper corner. It's been loading for over 30 minutes. Same thing happens if I try to test the connection. How can I get into the settings to change the key on the PS3?

im not sure how it wpa2 works...but if u go back to wep(which is secured enough) insted of the 10 digit code, enter the 26 difit code it generates instead

that blows