ESP devices 'offline' after VLAN setup

Hi,

i finally got around to moving all my IoT devices onto a separate VLAN. My HA server sits on the trusted network with firewall rules allowing it to see into the IoT network and the IoT devices able to see it’s IP. The issue is the devices appear as ‘offline’ in ESPHome Builder. They are on the IoT network. I can ping them from HA.
Any suggestions on the easiest and safest way to remedy?

Allow mDNS between the IoT VLAN and the trusted network.

Or turn on the “Use ping for status” configuration option in the ESPHome Device Builder app (previously add-on).

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sorted. thanks squire.

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