Hello,you have no nameserver for the opnsense itself. If you look into your /etc/resolv.conf you will have the entry "nameserver 127.0.0.1". But your unbound is listening on port 5353. I wonder why you changed the port to this, when adguard is running on a different machine.To solve it you can:- change the port of unbound to 53or- port forward port 127.0.0.1:53 to 127.0.01:5353 on the Loopback interface.KH