Pi-hole stops responding (config error is REFUSED)

[RobbedColek]

I've been having similiar issues since 2 days, using

pihole restartdns

fixes this, but error comes back randomly after some time. I am not having internet issues, as pinging 1.1.1.1 works fine as well.

Mar  9 11:35:06 dnsmasq[2897824]: config error is REFUSED (EDE: network error)
Mar  9 11:35:06 dnsmasq[2897824]: query[A] fonts.googleapis.com from 192.168.1.4
Mar  9 11:35:06 dnsmasq[2897824]: config error is REFUSED (EDE: network error)
Mar  9 11:35:06 dnsmasq[2897824]: query[A] fonts.googleapis.com from 192.168.1.4
Mar  9 11:35:06 dnsmasq[2897824]: config error is REFUSED (EDE: network error)

Here's my debug token:
https://tricorder.pi-hole.net/U583jIzp/

[DanSchaper]

@RobbedColek

pinging 1.1.1.1 works fine as well

Ping alone wont tell you if the problem is no route or if you're being blocked from the upstream. You also have more than 1.1.1.1 as upstream.

    PIHOLE_DNS_1=8.8.8.8
    PIHOLE_DNS_2=8.8.4.4
    PIHOLE_DNS_3=208.67.222.222
    PIHOLE_DNS_4=208.67.220.220
    PIHOLE_DNS_5=1.1.1.1
    PIHOLE_DNS_6=1.0.0.1

Your network is quite complex and at least one interface has port 53 used by a non-Pi-hole resolver.

[✓] udp:169.254.49.211:53 is in use by pihole-FTL
[✓] udp:169.254.194.96:53 is in use by pihole-FTL
[✓] udp:169.254.97.28:53 is in use by pihole-FTL
[✓] udp:169.254.186.147:53 is in use by pihole-FTL
[✓] udp:169.254.15.35:53 is in use by pihole-FTL
[✓] udp:169.254.95.22:53 is in use by pihole-FTL
[✓] udp:169.254.36.46:53 is in use by pihole-FTL
[✓] udp:169.254.52.100:53 is in use by pihole-FTL
[✓] udp:169.254.222.181:53 is in use by pihole-FTL
[✓] udp:169.254.177.187:53 is in use by pihole-FTL
[✓] udp:169.254.16.236:53 is in use by pihole-FTL
[✓] udp:169.254.4.202:53 is in use by pihole-FTL
[✓] udp:169.254.58.75:53 is in use by pihole-FTL
[✓] udp:169.254.119.204:53 is in use by pihole-FTL
[✓] udp:169.254.182.145:53 is in use by pihole-FTL
[✓] udp:169.254.241.74:53 is in use by pihole-FTL
[✓] udp:169.254.171.66:53 is in use by pihole-FTL
[✓] udp:169.254.72.202:53 is in use by pihole-FTL
[✓] udp:169.254.63.162:53 is in use by pihole-FTL
[✓] udp:169.254.191.43:53 is in use by pihole-FTL
[✓] udp:169.254.135.155:53 is in use by pihole-FTL
[✓] udp:169.254.22.215:53 is in use by pihole-FTL
[✓] udp:169.254.195.187:53 is in use by pihole-FTL
[✓] udp:169.254.12.98:53 is in use by pihole-FTL
[✓] udp:169.254.244.84:53 is in use by pihole-FTL
[✗] udp:192.168.100.1:53 is in use by dnsmasq (https://docs.pi-hole.net/main/prerequisites/#ports)
[✓] udp:169.254.132.171:53 is in use by pihole-FTL
[✓] udp:169.254.27.51:53 is in use by pihole-FTL
[✓] udp:169.254.193.247:53 is in use by pihole-FTL
[✓] udp:169.254.129.232:53 is in use by pihole-FTL
[✓] udp:169.254.212.130:53 is in use by pihole-FTL
[✓] udp:169.254.81.25:53 is in use by pihole-FTL
[✓] udp:169.254.54.111:53 is in use by pihole-FTL
[✓] udp:169.254.20.72:53 is in use by pihole-FTL
[✓] udp:169.254.128.68:53 is in use by pihole-FTL
[✓] udp:127.0.0.1:53 is in use by pihole-FTL

Take a look at the debug log, it's located in the /var/log directory.

[RobbedColek]

Hello, thank you for the reply.

Disabling that dnsmasq didn't help - issue still persists.

When this happends, going to Web UI's Settings results in blank page as well until I do pihole restartdns.