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Expected Behaviour:
Web pages load promptly
Actual Behaviour:
Intermittently web pages will either load very slowly, only load after multiple refreshes or not load at all. When they do not load at all I get an error in Chrome along the lines of "DNS probe failed no internet". When this intermittent behaviour occurs it affects all devices using the pi hole as DNS server and all web pages I try to access. If I switch to another VLAN that does not use pi-hole everything works fine.
*** [ DIAGNOSING ]: Networking
[✓] IPv4 address(es) bound to the eth0 interface:
172.18.0.3/16 does not match the IP found in /etc/pihole/setupVars.conf
*** [ DIAGNOSING ]: Name resolution (IPv4) using a random blocked domain and a known ad-serving domain
[✓] em.pc-on-internet.com is 0.0.0.0 via localhost (127.0.0.1)
[✗] Failed to resolve em.pc-on-internet.com via Pi-hole (192.168.1.111)
*** [ DIAGNOSING ]: Setup variables
...
IPV4_ADDRESS=192.168.1.111
So the IP of the pi hole box is 192.168.1.111 so not sure what the 172.18.0.3 is referring to? I'm running this in Docker on Ubuntu so it looks like there is probably an issue with the docker configuration.