Wi-Fi proxy changes are not getting applied until restarted

I am connecting to my company VPN over a Wi-Fi and supposed to use a proxy server in order to connect to internet.

Sometime, I need to update the proxy server to a new value. If I change the proxy server value and Apply, the changes are not effective immediately. I had to restart my Mac and after that only it uses the changed proxy server.

I used to do that same thing in Windows, where I could just change the proxy server and save the changes and it works immediately.

Is there a command/way to tell Mac to use the new proxy server immediately (flushing DNS / Networks values, etc)?