The Hikvision error (formally NET_DVR_NOSUPPORT ) indicates that the device does not support the specific function being requested . This typically occurs in software like iVMS-4200 when a user attempts to perform an action—such as specialized event playback or changing certain video parameters—that the hardware is not capable of handling. Common Causes
In some configurations, Error 23 mimics a "not authorized" state where the current user level (Operator vs. Admin) isn't allowed to perform the requested task. Log in using the account to see if the error persists. If it works for Admin, go to Remote Configuration > System > User Management hikvision error code hcnetsdkdll 23 verified
Are you seeing this error during , playback , or while changing settings in iVMS-4200? HCNetSDK
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: Attempting to change high-level video settings (resolution, frame rate) on a device that doesn't allow those specific modifications via the SDK/client. Error Code 23 = NET_DVR_USER_VERIFY_ERROR This means the
NET_DVR_USER_VERIFY_ERRORUse Wireshark to filter traffic on port 8000: