Pi-hole status is enable but not blocking adds

[deHakkelaar]

@Gaurav_Dhar

sometimes block adds most of the time doesn’t

Sounds like your clients have a secondary DNS server configured alongside Pi-Hole resulting in sometimes ads not being blocked because the other DNS server is asked for resolution who doesnt know of any blacklists ?

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 serv…

Check DNS servers assigned on clients with (for Windows):

ipconfig /all

And for Linux clients:

cat /etc/resolv.conf