Finally found the info for getting my S4 to work with my home WiFi router which is a Linksys E1000.
D-Link Connected Home Resource Center » Wi-Fi Protected Setup (WPS): The Easiest Way to Set Up Wireless DevicesD-Link Connected Home Resource Center
D-Link Connected Home Resource Center » Wi-Fi Protected Setup (WPS): The Easiest Way to Set Up Wireless DevicesD-Link Connected Home Resource Center