Hi,

i have a dahua 1104-P NVR with 2 connected cameras, recording the entrance of a domain -24/24 hour (loop) . Liveview on my windows 10 PC or on my iphone is no problem . However i just discovered than i can no longer playback the recorded video on my PC even though it works initially when the NVR was put in place more than 1 year ago. The videos are there since i can see the green bars appearing at the bottom of the playback screen after selecting a period and searching the last 24 hours  for instance , but if i want to select and see  the pictures between let'say 11 and 12 pm on the green bar , then i have a message on the screen saying :retrieving the first picture or searching playback now  ... and then nothing .

i installed the latest version of smartpss (ver2.02) on another pc ( win 10 ) and i have the same problem .  

Any idea what could be the cause ?