FYI, the latest blue iris update made my dahua mini black face ptz lose signal. I was able to log in via web and view live video, change settings etc. , so that led me to believe the problem was with blue iris. After trying to figure it out I just deleted the camera out of blue iris , then added new camera. It didn't work until I changed the make and model under configuration. What is working is : make Dahua , model Main stream RTSP.