How is that possible, if you run your own router you control DNS. Make your pfsense not use AT&T DNS?? I don’t know what to tell you but it’s your LAN, you can

How is that possible, if you run your own router you control DNS. Make your pfsense not use AT&T DNS?? I don’t know what to tell you but it’s your LAN, you can simply not use AT&T DNS at all. I don’t use pfsense specifically but I can tell you that you have it misconfigured.