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Switch it to and click Search again. Note: If the network bandwidth is choked, the NETSDK fails to load high-resolution main streams but successfully streams the lower-resolution sub-stream. 📂 Step 3: Update or Replace the dhnetsdk.dll File
menu and ensure the user profile you are using in SmartPSS has rights enabled for those specific cameras. 4. Sync Time and DST Settings
Access your device through a web browser to check for firmware updates.
When SmartPSS attempts to call recorded video files from a Network Video Recorder (NVR) or Digital Video Recorder (DVR), it utilizes an underlying library file called dhnetsdk.dll . The error usually triggers due to one of four common system bottlenecks: Switch it to and click Search again
When Smart PSS says "NetSDK returns error," it means the software sent a command to the NVR requesting a video stream, and the NVR sent back a rejection packet. The most common hidden error code associated with this message is 0x07 or 0x01 , which translates to or "Exclusive mode locked."
: Open your Task Manager while SmartPSS is running, find the SmartPSS process, right-click it, and select End Task . Then, restart the application as an Administrator.
If the user account used to log into SmartPSS lacks dedicated "Playback" rights for specific camera channels, the SDK drops the request. The error usually triggers due to one of
Outdated firmware on your NVR/DVR can cause internal indexing bugs. Visit the manufacturer's official website, download the matching firmware for your specific model, and update the unit.
Troubleshooting "Failed to start playback. NETSDK returns error" in SmartPSS
Look through the "Processes" tab for or Surveillance Pro . background SDK instances remain active.
In the NVR settings, ensure "Camera Time Sync" is enabled so the NVR pushes its time to all cameras. 2. Run as Administrator Smart PSS Error Help | IP Cam Talk
A common cause for the "exclusive" flag error is a zombie process. When Smart PSS crashes or closes incorrectly, background SDK instances remain active. These threads maintain an exclusive connection hold on the network sockets. Press to open the Windows Task Manager.
Lack of administrative privileges can prevent the software from initializing the necessary network drivers for playback.