Discovering entities in Alexa with Emulated Hue


I’m trying find my HA entities with Alexa using the Emulated Hue, which seems very simple, but I can’t do it.

I have a Fire Stick 4k and run HA under According to documentation, all I have to do is adding 2 lines on the configuration.yaml and then search in alexa app for hilips Hue Bridge V1

When I open the URL, the list of devices it’s shown, but when searching in Alexa, none device is found.
¿Any idea?