Ring Video Doorbell Wired will not complete setup or pairing

The checks in more detail

In the Ring app tap Set Up a Device, choose Doorbells, then Video Doorbell Wired, scan the QR code on the doorbell, and follow the prompts to join its temporary network and enter your Wi-Fi details. The wired doorbell needs a transformer of the right rating, which Ring lists, and a mechanical chime may need a diode or a Ring adapter, so check the transformer if the doorbell restarts when the chime rings. If setup fails, apply Ring's checks for setup problems in order. Make sure the Wi-Fi password is correct, the phone is near the doorbell with Bluetooth and location on, and the router's band is visible.

Check the power: a light ring that never comes on, or that flickers, means too little power, so check the connections and the transformer. Move the router nearer for the setup, since a weak signal at the door fails the process. Turn off VPNs. If the light ring spins and does not finish, reset the doorbell by holding the setup button, which on a wired model is under the faceplate on the right side, for 20 seconds, as Ring's reset article describes, then try again. After setup, check Device Health for the signal and power readings, name the doorbell, set the motion zones, and test with a press.

Keep the old button. Use an electrician if you are unsure about the wiring. Always turn the power off at the breaker before you touch the wires. Plan the installation for daylight and dry weather, and have a flashlight, a small screwdriver and the supplied tools ready. Take a photo of the old button's wiring before you disconnect it. Check the chime inside the house after installation by pressing the button, since a mechanical chime that does not ring means a connection fault or a chime that needs an adapter, which Ring explains in its installation guide.