The presence of multiple communication technologies and wide variety of protocol implementation makes interoperability a big challenge in the IoT ecosystem.  Original Equipment Manufacturers (OEMs) need to develop highly interoperable products and solutions to ensure success in the IoT market. This white paper discusses the various opportunities in the Internet of things, provides insights into why interoperability is a challenge, and how that challenge can be effectively addressed. The various interoperability issues faced in a WiFi network are discussed. The paper details how interoperability can be ensured for WiFi networks by leveraging interoperability labs and test automation.