I have a WiFi router in my home, great signal, no problems with computer or tablet use. The router is encrypted and needs a password to access WiFi signal. When I go to the WiFi setting on the phone the "connect" box is "grayed" out...only the "cancel" box works. I can access my neighbors WifFi because he does not have it encrypted but I don't want to do that. How can I get my S4 to use my home WiFi system if the phone won't let me type in my router password? Anybody???? Help!!!