[SCR]Why are some hosts unable to be controlled by the SCR50AXE content filter service?

Zyxel_Cooldia

Question:

We are testing the content filter service on SCR50AXE. Why are some hosts unable to be controlled by the SCR50AXE content filter service?

Answer:
Please check if DNS over HTTPS (DoH) is enabled on the Windows host. The SCR50 content filter would not work if hosts have DoH enabled.
To check if DNS over HTTPS (DoH) is enabled on Windows, you can follow these steps:
1) Open Command Prompt by searching for "cmd" in the Windows search bar and selecting the Command Prompt app.
2) In the Command Prompt window, type the CLI netsh dns show global, and press Enter.
3) Look for the line that says "DNS over HTTPS (DoH) setting" and check its value.