Temporary failure in name resolution when pinging website

[vytlh7d2l]

Problem:

Temporary failure in name resolution when pinging website

Expected Behavior:

Resolves name when using ping google.com

Actual Behavior:

Returns "temporary failure in name resolution", pinging 8.8.8.8 or similar has no issues

Background:

Could not reach pihole servers to update to v6
Followed info in DNS Issue - Temporary failure in name resolution and DNS broken only on localhost

Sucessfully updated to v6
changing the file resolv.conf is back to its default 127.0.0.1 upon reboot -> ping: google.com yields Temporary failure in name resolution

The {ipaddressOfPi}/admin yields 403 error regardless of what is in the resolv.conf
Adding the pi as the DNS server under the DHCP settings of my router also causes name resolution failures

Debug Token:

https://tricorder.pi-hole.net/gK41vudo/

[nero355]

Do you have any Upstream DNS Server configured ?!

Many seem to have some weird issue after the upgrade at the moment with their Upstream DNS Server disappearing for some reason...

[vytlh7d2l]

I checked and yes, I have OpenDNS configured upstream. So it hasn't disappeared as far as I can tell.

from /etc/pihole/setupVars.conf:
PIHOLE_DNS_1=208.67.222.222
PIHOLE_DNS_2=208.67.220.220

(sourced from Upstream DNS Providers - Pi-hole documentation)

[nero355]

Those should be configured in /etc/pihole/pihole.toml for Pi-Hole v6 ?!

[vytlh7d2l]

Ah! I see what you meant about the upstream DNS servers disappearing.

I modified it to upstreams= ["208.67.222.222", "208.67.220.220"]
which resolved the problem.

Thanks!