Hi to all!

I have recently updated the firmware to the latest version Archer_D7v1_1.6.0_0.9.1 (new UI Blue/green/white) coming from Archer_D7v1_0.9.1_1.1 (old UI Blue/white). Before, I used a lot the firewall configuration to manage the internet access times of some clients (at this link the example of what I mean: https://www.tp-link.com/it/support/faq/467/). With the new firmware, this is no longer possible, how come? I tried to use Parental Control by configuring specific IP / MAC to block but it doesn't work, the client continues to connect. If there are no alternatives and being an important function for me, is it possible to go back to the previous firmware?

Thank you