I’m finally giving up after about five years of erratic service. There were times when it worked okay, but it seems like it has gotten more and more erratic. At it’s best, everything worked except “knock to unlock”. I never got that feature to work. Most recently, the WiFi module fails to connect to my WiFi despite every attempt to reinstall. Recently the Auto Unlock stopped working. I think I have been more than patient (I’ve been trying for about five years) but, the directions are cumbersome, the unit is slow and now it has become unpredictable and frustrating to use. As soon as my new lock that is compatible with my other Nest products arrives, Sesame is going in the trash. Good riddance!