I had something very strange happen last night and I can't figure out what could have caused it. At 3:00am, while we were all asleep, the Z-wave door lock between my mudroom and the garage suddenly unlocked on its own. I have Alexa connected to my ISY and it calls out some events such as garage doors and locks opening and closing (mainly because of my very young kids), so it woke my wife and I up at 3:00am with that message, which was pretty scary. Fortunately I have a camera in the garage so I was able to see that no one was or had been there to unlock it, and the alarm was armed and quiet so no doors or windows were opened to get to that door.
After that I was more awake than I wanted so I tried to check and see what could have happened. I have not programmed or changed anything related this or other locks in months, so I'm not sure where this came from. I checked the ISY programs and the only one that ran at 3:00am was the built in "Query All", but that runs everyday at that time, has never done this before, and should not be performing commands. I checked the ISY log and, other than seeing that the lock status changed to "unlocked" at 3:00am (and a couple of minutes later to "locked", when I manually locked it), I can't find anything. I also checked the error log which also seems to do something everyday at that time, but there was nothing different or weird about last night. I checked my network and I don't think anyone hacked into my system, but maybe I should check to see if I find a way to see a login log for the ISY, is that possible?
Does anyone have any thoughts for what could have happened or what could have caused this? Is there any other way or tool that I can use to find out what or who triggered my lock to unlock?
Thanks in advance!