If you have the Protect Plus, Ring security will work if the Wi-Fi is down. However, if you have the Protect Basic plan or no plan, Ring Alarm won’t connect to the Ring – Always Home app when Wi-Fi fails due to the lack of cellular backup. Only the Protect Plus plan includes cellular backup, which will keep you connected to the monitoring center as well as your mobile application. This plan costs $10 a month or $100 a year.