Wired doorbell no longer work / is offline

[bgmstone]

Wired doorbell is no longer working.  Doorbell has been working perfectly fine for about 2 years and then went dark a few days back.  No lights are on, pressing the button does nothing and camera/alerts no longer working.  I've confirmed power at the doorbell is 18 VAC.  When I perform the factory reset sets, there are no blinking lights before or after holding the reset button for 15 secs.  I have swapped out the Chime and the transformer, but no longer think they were the issue.

Other cameras and base station on my network are working as expected.

Any other troubleshooting suggestions to try?

Model: AVD1001

[jguerdat]

Sounds like it died to me. You can try Settings, Support for the doorbell to see if they have any suggestions but I doubt it will be useful.