@nathand there’s a difference between for example connection refused, no response, and no route to host.
But these would (I’m assuming here) all likely be presented by Safari as “can’t connect to XYZ”
Connection refused can either mean there’s no service running OR firewall is up and rejecting
No response can mean the remote server is frozen OR firewall is up and is dropping
And no route to host would just mean that the IP address I’m trying to reach likely doesn’t exist on the network
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