Pihole not blocking anything

Help
1

Expected Behaviour:

Domains included in imported blocklists are blocked.

Actual Behaviour:

I am using two large lists for blocking (around 316k domains being blocked), but in the query log all domains are permitted, even the ones, that are in the list.

For example, the graph.instagram.com domain:

  1. I can see it in the source of the blocklist here: https://cdn.jsdelivr.net/gh/hagezi/dns-blocklists@latest/adblock/ultimate.txt
  2. I can verify that it is indeed loaded as a blocked domain:

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  1. It is not being blocked:

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I am not able to pinpoint the exact moment when pihole stopped blocking, but when I set it up initially, the blocking was working correctly. But I have then disabled logging, and have enabled it only now for debugging, so I do not know for how long it has been broken.

  • Operating System: Debian 13 (trixie), armbian build
  • Hardware: OrangePI One
  • Core v6.3
  • FTL v6.4.1
  • Web interface v6.4

Pi-hole is configured to use a local instance of stubby as a DNS server (which then forwards the requests to an anonymous DNS service via DoH) - I think that that is probably not relevant, but including this info as well in case it helps.

Debug Token:

https://tricorder.pi-hole.net/QmrrzDMk/

2

Your debug log shows the Default group to have been disabled:

*** [ DIAGNOSING ]: Groups
 id   enabled  name       date_added           date_modified        description
 ---- -------  ---------  -------------------  -------------------  -----------------
 0    no       Default    2025-12-28 16:04:04  2025-12-30 14:47:09  The default group

You have to re-enable the Default group, e.g. via Pi-hole's Groups UI.

3

Hm, thats curious, because the UI shows it as enabled (but the view is kinda buggy):

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Tried turning it off and on again, and now it blocks correctly, so hopefully it is resolved - thank you. :slight_smile:

I will monitor it now closer for a while to make sure it will keep blocking stuff.

4

This is not the web interface showing enabled.

Actually, this "large green button" shows the page was incorrectly rendered. Not sure what is causing it... maybe a temporary browser glitch (try clearing the cache) or maybe some browser extension incompatibility.

If you see this again, try to reload the page.
If the issue persists, please open a new topic and we will investigate.

5

When I click it, it says "Successfully disabled group" and rerenders the table, which fixes the view:

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so I assumed it is the "Enabled/Disabled" toggle, just with buggy rendering.

I of course clicked it again to re-enable the group, and now it renders correctly.

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I will create a new topic to report this visual bug - it happens around 50% of times when I reload the page