hi everyone

thank you in advance for your help.

so here's the scenario:

on my router:

i setup basic parental controls for each of my kid's devices,   basically on/off switch for wifi access.     so if one of the kids need to be punished. i usually go in there.  flip it on and the device has no access to wifi.  there are no time ranges setup.   just on/off.

one of my kids has PIA app installed for vpn on his desktop which is on. 24/7.

he is somehow still able to use the internet even though i turned off his wifi access at the router

how is this possible? and is there anything i can do on the router to prevent this?