Howdy! Is anyone by chance running IPFire and Technitium? If so, could you share your IPFire and Technitium settings please?
The challenge I have found is that when I change my IPFire DNS to the Technitium device, the Technitium device receives pings from devices on the network, but it does not appear that Technitium is able to resolve. I tried to setup forwarding to Quad9 on the Technitium device, but that did not seem to work.