these are the rule changes suggested by Umbrella: Essentially, add the following filter or rule to the firewall that is at the edge of the network: ALLOW TCP/UDP IN/OUT to 208.67.222.222 or 208.67.220.220 on Port 53 BLOCK TCP/UDP IN/OUT all IP addresses on Port 53 I have an Allow all rule at the end of the rule list, but these should take precedence, I believe.
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