WebGUI DNS requests to unbound are timing out.
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I have 3x freshly installed pfSense VMs. They are all acting as edge routers behind different ISPs. Two of them have a recurring issue where DNS requests from the WebGUI to the local unbound instance are timing out. Restarting either Unbound or the WebGUI will temporarily fix the issue but the problem invariably returns. While I am observing this behavior, I am able to query the loopback address from the shell. Has anybody seen this behavior before?