My only option for Wifi is Cox fiber optic cable that connects via a Coax F-connector for the WAN port. I have a separate box that connect the ARRIS Cable modem TM3402 DOCSIS 3.1 to the COX panaromic Wifi gateway. I took my Google Wifi Mesh Router AC1200 and the ethernet cable provided and removed the COX panaromic gateway connection and replaced it with the ethernet cable connected to the Google Wifi Mesh Router. Great that appeared to work fine. Then I tired to connect the other two Google Wifi Mesh Routers AC1200 to the network with the Google Home app. Unfortunately while it was checking the internet connection I keep getting a message: "Check WAN connection" An ethernet cable does not seem to be plugged into the WAN port properly. Please check it and try again. I assume I am getting this message because the WAN port is a coax F-connector and so the Google Mesh Router is not connected directly to the modem, but though this other device. I have read everything I can find about this issue, I have chatted with tech support people, but so far no luck in figuring out how to get the Google Mesh Router to connect via the Google Home App. I am so frustrated. I am wondering now if MoCa adapters would fix the issue but don't just want to buy things that I don't really understand how they work and may not resolve the issue. Any help? Anyone familiar with COX Arris Cable Modem TM33402 with the Coax F connector. I can't use an ethernet cable to connect to a WAN port because there is no such port on this modem.
Thank you anyone who can help me.