Set "Allow sites to be reloaded in Internet Explorer mode" to .
The NetSurveillance Web Plugin represents an outdated but once-necessary bridge between browser technology and video surveillance hardware. While it served a purpose in the era of ActiveX and NPAPI, modern security standards and browser evolution have rendered it obsolete. Organizations still relying on it should plan a migration toward plugin-free streaming protocols and updated hardware. netsurveillance web plugin
You might not see the name “NetSurveillance” explicitly on your device. The plugin is often rebranded. Look for any of these in your camera’s web interface: Set "Allow sites to be reloaded in Internet