My original August Connect worked well with August Lock Pro, 3rd gen.  August Connect went offline shortly after upgrading my ios device to iOS 14.  I tried to trouble shoot with August tech's support for numerous time.  The unit will join Wi-Fi network and recognized by the network with DHCP IP address assigned.  But the Connect cannot be seen by the August Lock (neither by Bluetooth or WiFi).  Eventually I chucked it off as hardware failure and purchased this replacement unit.  This unit failed to be recognized by the August Lock also.  The unit can join Wi-Fi network fine as the old unit.  Now the August Lock is working fine with Apple HomeKit via AppleTV with full home automation.  Now I am suspecting, that the August Lock Pro, 3rd gen may not be capable of working with both August Connect and Apple HomeKit simultaneously.   There is no documentation online what so ever about this.   So now I have two August Connects as paperweights, but working August Lock with Apple Home.