Pi-Hole not blocking ads

[pgattu]

I am testing whether my Pi-Hole installation is working by testing Pi-Hole's effectiveness at https://fuzzthepiguy.tech/adtest/. I see ads on the page. See attached screenshot for evidence. Please help troubleshoot and resolve.

[jfb]

How do I determine what domain an ad is coming from?

Block ads or fix broken sites This FAQ is written in the context of finding out how to block an ad that isn't blocked automatically, but the same steps can be used to troubleshoot issues with sites that don't function properly. An example is that sometimes certain payment gateways try to collect metrics on the sale, but these domains are blocked by Pi-hole, so the payment cannot be processed. Also, some links send you through several referrers and if one of them is blocked, you may land on a …

[pgattu]

It's not just a specific ad domain. My Pi-hole is not blocking any ads in my observation. Please help with troubleshooting or reinstallation steps.

[jfb]

Please generate a debug log, upload it when prompted and post the token here.

[pgattu]

Debug token is https://tricorder.pi-hole.net/CKcOPPKX/

[jfb]

Your debug log shows that Pi-hole is working.

You have two Google DNS servers being provided by your DHCP server.

DHCP options:
      Message type: DHCPOFFER (2)
      server-identifier: 192.168.1.1
      lease-time: 86400 ( 1d )
      netmask: 255.255.255.0
      router: 192.168.1.1
      dns-server: 192.168.1.249
      dns-server: 8.8.8.8
      dns-server: 8.8.4.4
         renewal-time: 43200 ( 12h )
      rebinding-time: 75600 ( 21h )
      domain-name: "local"

Don't do this:

Why should Pi-hole be my only DNS server?

Reduced Ad Blocking Capability The main reason you should Pi-hole as your only DNS server is that you will see increased performance in the blocking of ads. If you have two DNS servers (Pi-hole and something else), your network clients may not always query Pi-hole for name resolution. If a query happens to be answered from a non-Pi-hole DNS server, your block lists will not apply (since that DNS server doesn't know about them). All Queries Need To Go Through Pi-hole First Since other DNS se…

Also, don't use local for your domain name. This will cause conflicts with multicast DNS services.

Lastly,

From a client that you believe should be connected to the Pi-Hole for DNS, from the command prompt or terminal on that client (and not via ssh or Putty to the Pi), what is the output of

nslookup pi.hole

[pgattu]

C:\Users\pgatt>nslookup pi.hole
Server: pi.hole
Address: 192.168.1.249

Non-authoritative answer:
Name: pi.hole.genera.com
Address: 206.188.193.222