Whether the or showing errors in the storage menu. If you can reproduce the issue on a different computer.
Before diving into complex settings, check these three areas first, as they resolve 80% of these cases. Failed To Start Playback Netsdk Returns Error Smart Pss
Right-click the and select Run as administrator . Whether the or showing errors in the storage menu
Corrupted cache files within the Smart PSS directory can cause playback errors. Clearing these files forces the software to establish a fresh connection to the SDK. Right-click the and select Run as administrator
If you are accessing the cameras remotely over a VPN or a slow WAN connection, the network might be timing out before the stream initializes. In Smart PSS, go to management. Select your device and click Edit (the pencil icon).
Sometimes the error is simply a matter of "No Right to Operate" hidden behind a generic SDK error. Log in to your NVR with an administrator account