@coyote1abe said in DNS over TLS Not Working?: could you please be a little more specific about the change you made to system Somewhere in the past, he changed the IP settings of his device ( a Windows PC ) from the default DHCP settings to a static setting. Like this : [image: 1659682406226-d3577074-a66d-4dc6-9d2a-47fe70abc2e1-image.png] which means this windows device doesn't use pfSense at all for DNS .... because he asked 1.2.3.4 to be used. He has undone that, and now all is well.