This resolves any file system errors on the card itself that might be preventing playback.
If you're using SmartPSS version 2.002.0000007.0, you can try manually updating a specific DLL file. This has been posted as a workaround by a help center:
Click , and manually fill in your local IP address instead of using P2P domain names, or vice versa. failed to start playback netsdk returns error smart pss best
Sometimes the SDK fails because the network path is blocked by security software. ESET Security Forum Firewall Exceptions : Add an exclusion for the SmartPSS application and the SmartPSS.exe
Log directly into your NVR/XVR unit using the physical monitor console or through an internet browser interface. Navigate to the →right arrow System →right arrow Account . This resolves any file system errors on the
: For many users, manually updating the dhnetsdk.dll file in the SmartPSS installation folder ( C:\Program Files\Smart Professional Surveillance System\SmartPSS ) fixes the issue.
: Go to the NVR/DVR settings and ensure NTP (Network Time Protocol) is enabled and that the time exactly matches your PC's time. If a DST shift just occurred, wait until the next day for the index to normalize, or view the footage directly via the device's web interface. Sometimes the SDK fails because the network path
Smart PSS uses specific ports to pull video. If your network is congested, or your WiFi has packet loss, the NetSDK request times out. The error appears even though the device is technically online.
: Instead of clicking the timeline, go to the right-side panel in the Playback tab, click the arrow to view the file list, and double-click a specific file to see if it loads.
If the NetSDK error refuses to go away, the problem may be architectural. Here are your workarounds:
: If the user account logged into SmartPSS lacks specific "Playback" or "Monitor" rights for a particular channel, the SDK will return a generic failure error instead of a specific "access denied" prompt.