the photo is under notification then click the video clip, each time when click into it , it says "no video in the selected range " &" no video exists during the time period" regardless how i refresh. any idea where i can check and fix it . tnx
@JB1970, Sorry to ask question , i changed my line cross area in NVR, and when come to mobile app , it comes up video notification " no video in the selected range" not sure what`s going on? other areas setting remain unchanged.
thanks