Please follow the below template, it will help us to help you!
If you are Experiencing issues with a Pi-hole install that has non-standard elements (e.g you are using nginx instead of lighttpd, or there is some other aspect of your install that is customised) - please use the Community Help category.
Expected Behaviour:
[I installed Pihole on my raspberry pi 5 with latest version of raspbian as I have done before without issue but this time around it is not blocking any ads. I have an TP-Link Archer A7 router and set the static address of the pi as the DNS server. My pi is connected via ethernet cable directly to the router.]
Actual Behaviour:
[No ads being blocked and I do not seen anything hitting the query log as well.]
My old memory card crashed so I had to do a clean install and no other devices are using pihole due to some issue with my configuration which you two have highlighted so just need to find a way to remedy this now.
Try to set Pi-hole IP twice (Primary and Secondary), or set 0.0.0.0 as Secondary.
EDIT:
If your router doesn't allow 0.0.0.0, try to use some unused IP from your network, like 192.168.1.250 or even from a non-existent network, like 192.168.10.100