Access the NVR/XVR directly using a physical monitor and mouse. If footage plays back normally on the local unit, the recorder's files are intact.
If all else fails, contact Dahua support or your integrator with the exact NetSDK error code from the logs. failed to start playback netsdk returns error smart pss best
: The active user account assigned in SmartPSS might lack playback privileges configured on the NVR/XVR. Access the NVR/XVR directly using a physical monitor
Toggle the stream type from to Sub Stream (or vice versa). failed to start playback netsdk returns error smart pss best
The underlying dhnetsdk.dll file within the SmartPSS directory becomes incompatible with updated device communication parameters.