Unable to synchronize system time, Pi-hole not working

[deHakkelaar]

@thofra01

dig sigok.verteiltesysteme.net @127.0.0.1 -p 5335

; <<>> DiG 9.16.22-Raspbian <<>> sigok.verteiltesysteme.net @127.0.0.1 -p 5335
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 45557

Have you installed the latest Raspbian/Pi-OS Bullseye?

lsb_release -d

If so, make sure you do below:

Pi-hole Unbound and Cloudflare TLS

Have you hashed out below line: pi@ph5b:~ $ sudo nano /etc/resolvconf.conf [..] #unbound_conf=/etc/unbound/unbound.conf.d/resolvconf_resolvers.conf And deleted below file: pi@ph5b:~ $ sudo rm /etc/unbound/unbound.conf.d/resolvconf_resolvers.conf rm: cannot remove '/etc/unbound/unbound.conf.d/resolvconf_resolvers.conf': No such file or directory Above file configures unbound differently as you would expect creating a forward zone:

@thofra01

Even when I select the Pi as a custion IPv4 DNS server in Windows 10 no traffic is going through the Pi-hole.

Pi-hole needs to be the only DNS server for your clients:

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 on this Win client what DNS servers are configured:

netsh interface ip show dnsservers

Or run below on this Win client to see what server it prefers currently:

nslookup pi.hole