I am about to despair about this topic. I read dozens of articles, saw some videos on youtube and finally read this article here. Still, it just doesn't work for me.
When I finally do an nslookup on my Raspberry Pi that runs Pi-hole, I end up getting this:
pi@raspberrypi4:~ $ nslookup fritz.box Server: 126.96.36.199 Address: 188.8.131.52#53 ** server can't find fritz.box: NXDOMAIN
I set up a second Raspi with a fresh installation of everything and found out that it correctly resolves my router when not having Pi-hole yet installed.
Just after installation (with of course configuring the conditional forwarding) I get that error message.
I have no idea what else to do. I tried to install Pi-hole in a Docker container but I struggle over this insane IPv6 setup in a macvlan.
Anybody with some tipps how I can at least find out what's going wrong?