My Spectrum Internet has been out for three days. The hub is therefore offline and nothing works outside of physically using the switches. Except mobile presence! I am still getting the home and away notifications on my phone as I come and go. I even got it when the internet modem was sitting on the seat of my car next to me so it isn’t an intermittent connection issue.
Of course except for telling me I’m home or away, which I already know, nothing else happens since the hub is offline.
FYI, my mobile presence has been pretty reliable for a while now. (Knocking on wood)