Shelly H&T 3 Outbound websocket "connected", but doesn't appear in HA

I’m using the Shelly integration and followed the instructions here. The device claims that it’s connected but I can not get the Shelly integration to discover the device.

How do I get the H&T 3 to appear in HA?

Have you listened to the banner below urging you to reboot the socket?

I have rebooted the device several times, yes.

Moved the device from the IoT vlan (192.168.4.x) to our main vlan where Home Assistant is hosted (192.168.1.x) and the Shelly integration found the device immediately. All other Shelly devices work fine from the IoT network so no idea why this one is being fussy.