I checked your log, and the last "Knock" log appeared on 2016 Oct. 7 22:43:56 GMT. So I think if you delete the Beta app and download it again, it will be fixed.
I think this is a great idea ! We actually have taken Wi-Fi's GPS result into consideration but your suggestion is definitely worth considering.
Currently, all iPhone models support Auto-Unlock feature ; however, due to some hardware limitation, only iPhone 5S,6,6+,6S,6S+,7,7+ support Knock-To-Unlock feature.
Thank you, yes. we are keep improving the app. We have spent last week to improve Knock and Auto-Unlock, but we need to go back to Wi-Fi Access Point now and finish it by this month.