Reference:
CDVI-ATFINDER
Thanks to the "ATRIUM Finder" app (available for Android and iOS), you can locate all the A22 drivers from your local network from your smartphone. A click on the desired A22 will open the login page of your web server. This app is very useful for when you do not know the IP of your ATRIUM system. The "ATRIUM Finder" app is now available in the Google Play Store and Apple Store.