According to official Hikvision Technical Bulletins , (NET_DVR_PASSWORD_ERROR) explicitly translates to a User Name or Password Error .
The keyword phrase typically refers either to version 1 of this dynamic link library or, more commonly in error logs, the first instance of a problem related to this file (Error Code 1). This article will break down exactly what this file is, why version "1" matters, what causes errors, and how to fix them permanently. hcnetsdk.dll 1
: No permission (The user doesn't have the right to perform the action). : No permission (The user doesn't have the
If you are a developer using the Hikvision SDK, specifically corresponds to NET_DVR_PASSWORD_ERROR , confirming that the login function failed due to the password. This is the most reliable fix
: If the device is managed by multiple people, confirm if the password was recently changed via a web browser or the local NVR interface.
This is the most reliable fix.