Wi-Fi connects to your home’s internet router. If the internet connection is down for any reason—quite possible following a disaster or during a severe storm—the Generac Generator can't send you status alerts or updates. You won’t know if the generator is running or f it requires service or maintenance. Generac Mobile Link Cellular connects to the Generac service through the Verizon cellular network. Cellular networks have greater reliability during severe weather and after disasters. Upgrading to Mobile Link Cellular ensures you get the information you need even in bad weather or when the power is out.