After installing my WiFi access point i’ve had lots of trouble getting the sesame to connect while walking up to the door. It likes to switch between the two connections and show “busy” a lot of the time. Or only use WiFi and then do nothing when I tap to unlock. The access point is very close to the router and the sesame and set up properly, it just works very slowly.
Usually it takes a few tries opening and closing the app to get it to finally connect and unlock.