I honestly cant say if I saw any ads getting through. Although my browsers on laptops and iPads etc all have adblockers on as well. Sadly the pi has died so I don't have a pihole anymore but I may...

I set the secondary dns to the same one I used on the pihole which was opendns. So if your pihole ever fails at least other devices still have a DNS to use.

Hi, I don't know if this helps or not, but my Pihole is working fine. I introduced to to an existing Deco network. I set up the pi, used Deco app to give the Pi a static IP, and then installed...