I am very new to install Pi hole in my Raspberry Pi 4 which I bought today. I installed it correctly. Changed DNS address in my Netgear Router (Nighthawk R7000). But ad is still continuing in my PC,android, Iphone & Firestick. I would highly appreciate if anyone could assist me on this.
I don't know why DNS 8 appeared. I have been trying to set it up for last 3-4 hours. As I told you I am very new to it.
Is there any way I can resolve it?
The problem Lise in DNS_7 (this is the IP of your Pi-hole.
Let's simplify things and get your Pi-hole working. On the web admin GUI > settings > DNS page, deselect all DNS servers other than the two Cloudflare. You don't need 8 upstream DNS servers, you only need one. Selecting both Cloudflares lets Pi-hole use either of their two public IPs.
After you make these changes, we'll check on why the clients are seeing ads.
Looks like the Pi-hole is working properly and has received and processed the following activity in the past 24 hours:
[2020-12-28 00:17:06.593 585M] Imported 27792 queries from the long-term database
[2020-12-28 00:17:06.594 585M] -> Total DNS queries: 27792
[2020-12-28 00:17:06.594 585M] -> Cached DNS queries: 1701
[2020-12-28 00:17:06.594 585M] -> Forwarded DNS queries: 24689
[2020-12-28 00:17:06.594 585M] -> Blocked DNS queries: 915
[2020-12-28 00:17:06.594 585M] -> Unknown DNS queries: 304
[2020-12-28 00:17:06.594 585M] -> Unique domains: 1106
[2020-12-28 00:17:06.594 585M] -> Unique clients: 6
Let's look at the PC first to see why there are ads on that device. From the command prompt on that client (and not via ssh or Putty to the Pi), what is the output of
Pi-hole is correctly receiving and processing queries from that client, including blocking a known ad-serving domain that is on most blocklists. If the client is seeing ads, then either there is a browser running private or secure DNS (Chrome and Firefox have this option); and the DNS queries from the browser aren't going to Pi-hole, or the ads are from sources that cannot be blocked by Pi-hole (YouTube, Facebook, etc.).