Activity limit not pausing wifi

Even though I have activity limits for my child, the WiFi doesn't pause. I don't get notifications even though I have it set for notifications via text and email. Just had a technician here to help, but he said it's an app issue. I've deleted the app, the devices from the profiles, made new profiles. And it won't pause any devices, and often doesn't even recognize the WiFi activity at all. A new router today and it's still not working.