Pfsense/pihole question

Networking & Firewalls
1 
current setup

  wan - pfsense - 10.0.0.1 DNS ---clients (cw, tele, x99)

after pihole 
(Services > DHCP Server > Server Options > DNS servers)

  wan - pfsense - 10.0.0.5 DNS ---clients (cw, tele, x99)


restart network on cw
resolvectl shows DNS 10.0.0.5
from cw: ping tele does not resolve

what do I need to do so tele is resolved?
2

I don’t fully understand the question but if something is not resolving it needs a DNS entry.