Thanks for the information.
I have had the hub reconnect to wifi automatically before. After a recent power outage in which the hub was still running on battery, all of the sensors and cams reconnected to wifi but the hub would not.
I contacted support and the only way to fix it was to add the hub again through the app which involves pressing the button on the back of the hub. This isn’t very practical for a home security system if you are away or on vacation.
This issue was reported previously here:
I updated the hub firmware after getting connected to wifi. Does the latest firmware fix this issue or is it still a known problem?