If an application attempts to restart a camera service, it may call NET_DVR_Cleanup() followed by NET_DVR_Init() . If the cleanup phase fails or hasn't finished processing, the SDK still registers as initialized.
using System; using System.Runtime.InteropServices; hcnetsdk.dll 9 hikvision error
or the device firmware to the latest versions to ensure compatibility. DNS or Platform Settings If an application attempts to restart a camera
Technical Analysis of HCNetSDK.dll Error Code 9 (NET_DVR_PARAMETER_ERROR) DNS or Platform Settings Technical Analysis of HCNetSDK
A: This is a classic version mismatch. The new firmware requires a newer version of the SDK. You must also update the iVMS-4200 software to the latest version to match the new firmware APIs.
If you have followed all the steps above and the error persists, the final step is to contact Hikvision Technical Support with your device logs and the specific SDK version number.