[BUG] Pi-Hole seems to not work on clients without hostnames with conditional forwarding turned on

[deHakkelaar]

Pi-hole working with OpenVPN but not working without it

If have doubts about settings being pushed by router to clients, try install nmap on Pi-hole: sudo apt install nmap And do a dhcp-discovery against the router that does DHCP for your clients with below one: sudo nmap -sU -p67 --script dhcp-discover <ROUTER_IP_ADDRESS> Example with 10.0.0.2 doing DHCP for my network: xbian@avr ~ $ sudo nmap -sU -p67 --script dhcp-discover 10.0.0.2 Starting Nmap 7.40 ( https://nmap.org ) at 2019-02-21 06:31 CET Nmap scan report for noads.dehakkelaar.nl (10.0…

And check if you have IPv6 support upstream from your ISP:

Test your IPv6.

If dont have IPv6 support upstream, try disabling anything IPv6 related on the router.
And renew DHCP lease on your phone by disconnecting/reconnecting WiFi.
And oc check the getprop commands again.