"Ring video doorbell will not connect to wifi"に関する回答Disabling 5Ghz resolved my issue. So i have NETGEAR C7000v2 modem/router, what you have to do is open your browser ( use Internet Explorer or Opera do not use Chrome because control panel will not work in Chrome ). Type in www.routerlogin.net you will be prompt fot username and password ( default login for NETGEAR is username: admin password: password ). After you log in go to ADVANCED tab then Advanced Setup and from drop down menu click on Wireless Settings. Look for Wireless Advanced Settings (5GHz a/n/ac) and uncheck “Enable Wireless Gateway Radio” click Apply which is located on top. Log out and unplug your modem/router for 10 sec. Thats it. Worked for me and believe me i called the support they were very nice but made me go to best buy for a replacement so i did. But when second one stopped working i was sure that dorbell wasnt an issue… I hope this was helpful. Good luck !