Problems with google home / nest hub / stream component with router change

@vlaraort wrote:

Hi there!

I am using a Home Assistant instance, running in 0.100.3 version in a python virtual env.

I have changed my main router (ISP ONT+Router) to a Asus AC68U + separate ONT, currently everything is working as intended

I have the manual google assistant integration configured, exposing several lights, and they are working

My external access is configured with duckdns and letsencrypt, the asus router automatically enables nat loopback, so I am able to access to https://home.mydomain.duckdns.org:8123 from outside and inside of my network, without certificate problems.

The problem is now with the nest hub and the google home minis. When I try to use tts in any of the google devices, the “bling” sounds, but nothing is said, I have tryied from the frontend and from an automation an it does not work, a chromecast icon is displayed in the hub, the status changes to idle, but nothing sounds. There are no logs at all about something happened.

Also, when I try to cast a camera exposed to google home (with the stream component properly setted up), the “bling” also sounds, but only a “Smart home Camera” string is displayed, and there is no video at all. This has been tested in a nest hub and a MIBOX3, and the problem is the same

Previously, with my ISP router, everything works, so this should be something related to a network configuration, but I can’t find anything regarding needed configurations or ports mandatories to make this work.

this is my camera configuration (custom firmware dafang), it works in the frontend with the stream enabled, and the stream worked before the router change

camera:
  - platform: generic
    name: dafang camera
    still_image_url: https://192.168.1.140/cgi-bin/currentpic.cgi
    stream_source: rtsp://192.168.1.140:8554/unicast
    verify_ssl: false
    username: root
    password:  *****
    authentication: basic

I don’t have any configuration for the nest hub / google homes, they are automatically discovered by HA and they appear as media_players in my entities

More info: the casting from another sources works properly, also the home assistant cast is working properly, so it smells like some kind of internal configuration in the network is not working, because the only issue is from local network to local network.

Can someone show me some light, or maybe some ideas about how to trace this problem?

Regards!

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