Echo is only supported on a wired Ethernet network. WiFi simply isn’t fast enough to consistently deliver reliable HDTV signals today. If you don’t have a wired Ethernet network, we recommend using MoCa adapters to use your in-home coax cabling as an Ethernet network. In some cases you can also use PowerLine adapters to use your in-home electrical wiring as an Ethernet network; however PowerLine networking delivers lower bandwidth and is less reliable than MoCa so we recommend MoCa.