Pi Hole seems not to block ads although it's active

[DanSchaper]

Looks like you have IPv6 capable clients and Pi-hole, but the IPv6 address is not set up correctly. Try using ULA's instead as they are more stable than the GUA addresses.

Use IPv6 ULA addresses for Pi-hole

Many users have reported that frequently changing IPv6 addresses cause page load to be slow or even prevent from working at all. The issues can be fixed by updating the IPv6 address in /etc/pihole/setupVars.conf followed by a run of pihole -g. However, this solution turns out to be very inconvenient since it might be necessary to change the IPv6 address on a regular basis (maybe even multiple times a day). An alternative approach we are currently looking into is the usage of ULA addresses which…