Ring Doorbell 3 won't connect

I have a Video Doorbell 3. The battery dropped below 5% at one point, and it disconnected from the wifi. I tried replacing the battery several times, but it always reported 5%. The app reports the doorbell as offline.

I cannot do live stream. I cannot hear when the doorbell is pressed.

I just tried pressing the orange button for 15 seconds, put it in setup mode, but could not figure out how to reconnect it to the wifi.

Right now when I try to go to the device in the app, I just get the spinning ring, and nothing happens. How do I get my doorbell back online?

Note: The router has been rebooted a couple of times for power outages since the doorbell stopped working on July 17, so we can skip that troubleshooting step.

This is for the security cameras. Is there a page specifically for Ring Doorbells?