1. Under normal circumstances, the browser will automatically load the control. You may see this experience at the top of the browser.

2. Click on the control bar and select "Install ActiveX Control". Under normal circumstances, the control can be successfully installed. If the installation cannot succeed because "windows has blocked this software because the publisher cannot be verified", please refer to step 3 to set up the browser.

3. If the browser has no corresponding settings, it will prompt "Blocked", thus preventing the installation. As shown in the figure below, you can start setting from step 4;

4. Open the "Tools" menu of the browser and click "Internet Options";

5. Click the Security tab, and then click the Custom Level below;

6. Select "Download unsigned ActiveX controls" and set it to "Enable", then click "OK" button;

7. Go back to the network demonstration page of a city, refresh the browser page, and click the 1 section to install ActiveX controls, so that they can be installed normally and will not be blocked by windows; 8. If not, please continue to the next step. Open the browser "Internet Options-Advanced Options" and select "Allow software to run and install, even if the signature is invalid". 8. After confirming that the control is successfully installed and the monitoring screen can be browsed normally, for safety reasons, you can set "Download unsigned ActiveX control" as "Disabled" again according to steps 4, 5 and 6.