I connected and configured my wireless router and all desktops and laptops will work when wired. Laptops and iPods will find the router, ask for the password but not connect. The security mode was set to WPA Personal. When I changed the security mode to WEP, all wireless devices now connect and can access the web. I would really like to have it set to WPA, so how do I get the devices to work when in the WPA security mode?