If you updated to HA 2026.9 and your cameras via the hikvision_next HACS integration are offline, it’s because HA now completely blocks the deprecated via_device parameter causing a RuntimeError.
Temporary fix until the dev updates the integration:
Open config/custom_components/hikvision_next/hikvision_device.py
Find and comment out (add a #) this line: via_device=(DOMAIN, self.device_info.serial_no) if self.device_info.is_nvr else None,
Restart Home Assistant.
I already opened an issue on the developer’s GitHub.