I have created a subnet for IoT devices that only need to talk to HA. The firewall rules seem to be correct–IoT subnet devices can access HA on the LAN, HA can access IoT subnet devices, IoT subnet devices can access the local DNS on port 53, and IoT devices cannot access any other zones (not even the Internet). I connected my laptop to the IoT network, and when I enter the HA URL, I get a message with the HA logo saying “Unable to Connect to Home Assistant”. One of my thoughts was that the browser can’t access the CA server on the Internet, but the certificate is noted as valid, so I don’t think that is it. Any thoughts on why my issue could be?
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