I have a Pro 2. Working fine but I noticed the battery was at 29% and before I could replace it, I got the "offline" notice. I replaced the battery with a fresh fully charged one. When I went to add the camera, I placed it next to the base, opened the app and followed the directions. Once I pushed sync the blue light start flashing on the camera and on the base but it never synced. Not sure what to try next.