PiHole blocking but ads are still showing

[jfb]

Your debug log shows that your Pi-Hole is working correctly.

You may still be seeing ads for several reasons:

1. The client has an alternate path for DNS queries. This can be IPv6 or a number of other reasons.
2. The ads might come from a domain that is not being blocked by Pi-Hole. These tools can help you troubleshoot this problem:

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 …

I would tail the pihole.log while opening the offending web page on your Windows client and verify that you are seeing the requests from the client in the pihole.log. If not, then the client is getting DNS queries resolved elsewhere.