I've heard a few here say that they cannot access Live View on their smartphones via wifi. Here's a snap of Live View of my video doorbell cam. Wifi router is approx 35' in the back of the house. Front wall mounted doorbell cam is mounted on a concrete wall, battery operated, and metal front door. Live View took less than 2 sec on my iPhone in the master bedroom. Both video and audio is fine, though audio is muted in photo.