A: Indirectly. A firewall blocking port 8000 TCP will cause "Network Error" or "Timeout," not specifically "Verified failed." However, a firewall performing deep packet inspection (DPI) can corrupt the authentication packet, resulting in Error 23. Temporarily disable DPI for the surveillance VLAN.
If you encounter this during a live view or configuration change: hikvision error code hcnetsdkdll 23 verified
Dealing with "Hikvision Error Code HCNetSDK.dll 23": Causes and Quick Fixes If you're using or another Hikvision management tool and see the message "HCNetSDK.dll[23]" , it typically means Function Not Supported A: Indirectly
Check your device's datasheet to ensure it actually supports the feature you are trying to use (e.g., Audio, PTZ, or Smart Detection). " not specifically "Verified failed." However
If the above methods don't resolve the issue, try these advanced troubleshooting methods: