Connection error (1.1.1.1#53): failed to send UDP request (Network unreachable)

[Dutch24]

Good day,

Connection error (1.1.1.1#53): failed to send UDP request (Network unreachable)

I have tried other answers from forums but it didn't work for me
Disabling:
resolver.resolveIPv6

I did also disable some other setting for another error that is fixed.
ntp.ipv4.active
ntp.ipv6.active
ntp.sync.active

debug token is: https://tricorder.pi-hole.net/VAkitUOy/

Thanks for the help in advance.

[Bucking_Horn]

@Dutch24

Connection error (1.1.1.1#53): failed to send UDP request (Network unreachable)

At least the machine that runs your Pi-hole can't reach 1.1.1.1, a public Internet address.

Either your router is (temporarily) disconnected from the Internet, or it actively prevents your machine running Pi-hole from contacting public IPs (or public DNS servers).

[rdwebdesign]

Did you restart the machine around 14:00?

Maybe it was a temporary network issue, or the network wasn't fully started yet.

The log shows the warning was generated while Pi-hole was starting (at 14:00:17.998):

2026-02-03 14:00:17.998 CET [1059M] WARNING: Connection error (1.1.1.1#53): failed to send UDP request (Network unreachable)

After that, apparently no more warnings were generated.

[Dutch24]

Thanks for the help,

I have rebooted the Pihole many times but it keeps happening after that error nothing happens
Do you have maybe tips. how to get it to work in Plublic IPs or Plubic DNS server?

[Dutch24]

@Dutch24

Thanks for the help,
No, I have only restarted the device again on 21:00 but the same thing keeps happing.
It says the 1.1.1.1#53 error and after that nothing comes after.

Thanks for the help,
No, I have only restarted the device again on 21:00 but the same thing keeps happing.
It says the 1.1.1.1#53 error and after that nothing comes after.

[Bucking_Horn]

Run from your Pi-hole machine, please share the output of:

ping -c 1 1.1.1.1

nslookup one.one.one.one 1.1.1.1