If you have a raspberry pi lying around (probably other *nix machines would work too), you can setup https://pi-hole.net https://pi-hole.net I run it at home a

If you have a raspberry pi lying around (probably other *nix machines would work too), you can setup https://pi-hole.net https://pi-hole.net I run it at home and it blocks the ads on my entire network. Work exactly like your method.