Bug in parental controls in Asus RT-AX1800S router?

I bought a new Asus RT-AX1800S. In the parental controls section, you can configure the times at which a given device has access to the Internet – but it doesn’t work. The device has access to the Internet at all times regardless of that setting. Does anyone know a work-around?

The bug occurs with the current firmware, but also with the oldest firmware available on their website, which is from October 2024.

I have already done the following:

  • check the time or time zone: even an all-day exclusion has no effect

  • restart the router

  • upgrade the firmware

  • reset the router to factory defaults

  • replace the router with the same brand

  • the bug occurs regardless of whether the device is on a guest network

  • check the MAC address and IP address. They are correct: see the attached image.

  • also, I am confident that I know how to do it, because I successfully set this up with my Asus AX4500, which had an almost identical administration interface.

admin interface of Asus router