Amazing update! I really like the media capabilities. However, my local mp3 won’t play on my cast devices any longer: the Call Service: Play Media of a doorbell.mp3 onto my Cast devices now renders this error. The Cast device wakes up, but the mp3 is inaccessible all of a sudden. Any ideas where to look?
Logger: homeassistant.components.cast.media_player
Source: components/cast/media_player.py:387
Integration: Google Cast ([documentation](https://www.home-assistant.io/integrations/cast), [issues](https://github.com/home-assistant/home-assistant/issues?q=is%3Aissue+is%3Aopen+label%3A%22integration%3A+cast%22))
First occurred: March 7, 2022, 18:05:38 (29 occurrences)
Last logged: 22:18:41
* Failed to cast media http://192.168.1.30:8123/local/house-bell.mp3?authSig=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiI5ODBlZThjYTQ1Y2U0M2UwYWY3NWNjMmUxODhmMmJkNiIsInBhdGgiOiIvbG9jYWwvaG91c2UtYmVsbC5tcDMiLCJpYXQiOjE2NDY3NzQwMzUsImV4cCI6MTY0Njg2MDQzNX0.g7KYspiikJLqoYrGmFWRugjnuDEYB3OvabGEb0iRq8Y from internal_url (http://192.168.1.30:8123). Please make sure the URL is: Reachable from the cast device and either a publicly resolvable hostname or an IP address
* Failed to cast media http://192.168.1.30:8123/local/house-bell.mp3?authSig=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiI5ODBlZThjYTQ1Y2U0M2UwYWY3NWNjMmUxODhmMmJkNiIsInBhdGgiOiIvbG9jYWwvaG91c2UtYmVsbC5tcDMiLCJpYXQiOjE2NDY3NzQwMzIsImV4cCI6MTY0Njg2MDQzMn0.8EErvj4CBsWR6LM20boZCBJ-BWK-XyMZzKu2FCWGWVQ from internal_url (http://192.168.1.30:8123). Please make sure the URL is: Reachable from the cast device and either a publicly resolvable hostname or an IP address
* Failed to cast media http://192.168.1.30:8123/media/local/house-bell.mp3?authSig=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiI5ODBlZThjYTQ1Y2U0M2UwYWY3NWNjMmUxODhmMmJkNiIsInBhdGgiOiIvbWVkaWEvbG9jYWwvaG91c2UtYmVsbC5tcDMiLCJpYXQiOjE2NDY3NzQxNTUsImV4cCI6MTY0Njg2MDU1NX0.KRKsnmA0JZNgM0zj-kTx5nzdTVhna7CkKFVOyrR-gyE from internal_url (http://192.168.1.30:8123). Please make sure the URL is: Reachable from the cast device and either a publicly resolvable hostname or an IP address
* Failed to cast media http://192.168.1.30:8123/media/local/house-bell.mp3?authSig=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiI5ODBlZThjYTQ1Y2U0M2UwYWY3NWNjMmUxODhmMmJkNiIsInBhdGgiOiIvbWVkaWEvbG9jYWwvaG91c2UtYmVsbC5tcDMiLCJpYXQiOjE2NDY3NzQxOTQsImV4cCI6MTY0Njg2MDU5NH0.XHu7TAcKP0FW6xX36j8DPlxLHoV-k4P91GsrZBsHWcw from internal_url (http://192.168.1.30:8123). Please make sure the URL is: Reachable from the cast device and either a publicly resolvable hostname or an IP address
* Failed to cast media http://192.168.1.30:8123/media/local/house-bell.mp3?authSig=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiI5ODBlZThjYTQ1Y2U0M2UwYWY3NWNjMmUxODhmMmJkNiIsInBhdGgiOiIvbWVkaWEvbG9jYWwvaG91c2UtYmVsbC5tcDMiLCJpYXQiOjE2NDY3NzQzMjAsImV4cCI6MTY0Njg2MDcyMH0.4zNZd_udR-2A3dpBGUS7stOQimMAOnxg_Rig39iPtYM from internal_url (http://192.168.1.30:8123). Please make sure the URL is: Reachable from the cast device and either a publicly resolvable hostname or an IP address
**Edit: I fixed it!
Apparently the Internal URL in General Settings changed, for some reason. I haven’t touched it in over a year, but it got jinxed somehow.