New ring doorbell constantly offline

Hello, this is the second Ring doorbell 2 I have purchased and I’m still having problems. If I push the doorbell, or walk I front of it, I get notices, which is greats. If I try to see camera in Alexa or my phone, I keep getting a message that the camera is offline. I have no idea how camera could be offline but I am getting notices. The camera randomly looses WiFi. I have a brand new dual band router and even have placed ring doorbell 8 feet from a powerful WiFi repeater. I’ve made sure not to connect to the 5g part of the router (2.4 as suggested) can anyone help? Ring customer service doesn’t offer a chat, and I don’t want to spend hours on the telephone. My network is fine, no problems, and I don’t want to send back another ring doorbell to Amazon again. I’m open to any and all suggestions. Thank you Chuck