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Some Hikvision device SDKs support NET_DVR_RemoteControl with a command to disconnect other sessions. However, this requires administrator privileges and is not available on all firmware.
This means you are attempting to use a specific feature in the software that the connected hardware (DVR, NVR, or IPC) does not actually support. Common scenarios where this error appears include: Common Features Causing Error 23 hcnetsdk.dll 23
The first step is to check the datasheet of your specific camera model. If you are trying to use a feature like or Intrusion Detection and receive Error 23, verify on the Hikvision Product Page that your specific model actually supports that feature. 2. Update Firmware Common scenarios where this error appears include: Common
Your application crashes without calling NET_DVR_Logout() . The device maintains the TCP session for a timeout period (typically 30–90 seconds). When you restart your app and attempt to log in again, you get error 23 because the old, stale session is still alive on the device. or IPC) does not actually support.
Assign each the same permissions. This completely avoids concurrency conflicts.