Nighthawk R8000 parental Control override ?

Hi all,

Im after some help, I have just set up this router, Got it mainly for the parental controls,

I find the Circle app really easy and usefull BUT I have noticed if you reboot the router it automaticaly turns the parental controls OFF.

So basically whan im not at home my teenager just reboots the router and has full access to the internet.

Has anyone else come accross this or have a fix ?

Thanks