To stop this conflict between your software and device, work through the following engineering solutions sequentially. 1. Optimize Stream and Video Parameters
This is the advanced fix that 99% of technicians miss. Windows often caches network credentials silently. Even after you delete a device from iVMS, Windows remembers the old password.
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Always test problematic functionality using Hikvision's official demo applications before assuming the issue is in your own code. Hikvision provides demo applications in various programming languages that demonstrate correct SDK implementation. If the demo works but your application does not, the issue is likely in your implementation rather than the SDK or device.