If your Arlo Doorbell is offline, follow these troubleshooting options:
Make sure that your Arlo base station is powered on and the Power LED is lit green.
Make sure that your Arlo base station is connected to the Internet and the Internet LED is lit green.
Make sure that your Arlo Audio Doorbell is powered on. To check, walk past your Arlo Audio Doorbell., The LED ring lights when the Arlo Audio Doorbell detects motion, which indicates that it’s powered on.
Make sure that you used new batteries to power your Arlo Audio Doorbell.