@terziyski Not sure how accurate this is because shouldn't the router then logically show no internet connection, when I'm blocking these two domains with my pi-hole? I'm blocking them and the router...

I have a primary Network (192.168.0.1/24) with a different Router and a Raspberry Pi with Pi-Hole (DHCP & DNS enabled). The Archer C80 is connected by LAN (WAN) and spans a subnetwork...