This seems to indicate that if I do reset it and add it without removing the hub from the app, everything would be retained, and it would incorporate the new wifi settings. But they don’t specifically say to factory reset it. Repairing doesn’t work. But I need someone to confirm if adding it, without deleting it, would actually retain sensors with a factory reset of the hub.
Did I mention that all of this is unnecessary when wifi changes could easily be implemented in the program/firmware?