Hi,
I found out that when you have a ddns address configured in base_url, TTS will send an URI https://my.ddns:8123/api/tts_proxy/uuid…-en-google.mp3 to the media player which doesn’t play when your router doesn’t support NAT loopback.
My request: checking that the media_player is on the same network and send the internal address in place of the public one.