Hi there, neighbors! To best setup your Key by Amazon to Work With Ring, I recommend following the steps in this help center article. There you will see steps for linking and setting up your Ring and Key by Amazon, as well as further tips and tricks for use. As a troubleshooting step, please try unlinking or removing the integration from both apps, and setting it up again.
If this is a first time attempt at getting the integration to work, try doing this from another mobile device, if possible, as this will rule out many factors. Fee free to let us know how this goes!