Reolink camera and Google Nest Display

Hi everyone,
Just installed my Reolink WiFi Doorbell today.
If I say ‘Ok Google, Stream doorbell’ - It shows the live footage.

Trying to create an automation where if the doorbell rings, it shows up on the Google Nest Display.
At present, if the doorbell rings, the display makes a noise, trys to load the camera and then just shows a blue cast icon in the center of the screen. No actual footage loads.

Just wondered if anyone had experienced anything similar or might know where i’m going wrong?

This is the error in my log:

Logger: homeassistant.components.cast.media_player
Source: components/cast/media_player.py:378
Integration: Google Cast (documentation, issues)
First occurred: 21:37:04 (3 occurrences)
Last logged: 21:41:42

Failed to cast media http://hassio.local:8123/api/hls/3e975466eec737310974e5ff58a61dd3275aa6628630d8b703c99fc76161e444/master_playlist.m3u8?authSig=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiI2MzEwNzBlMjBhMzA0OTRmOTY0YjY1Y2E0NzE4OWQyMCIsInBhdGgiOiIvYXBpL2hscy8zZTk3NTQ2NmVlYzczNzMxMDk3NGU1ZmY1OGE2MWRkMzI3NWFhNjYyODYzMGQ4YjcwM2M5OWZjNzYxNjFlNDQ0L21hc3Rlcl9wbGF5bGlzdC5tM3U4IiwicGFyYW1zIjpbXSwiaWF0IjoxNzA5MTU2MjIwLCJleHAiOjE3MDkyNDI2MjB9.yeS84ZxtUpSjnPMjdF1IyNHggeqL9aO11ZxAEoXk6hc from internal_url (http://hassio.local: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://hassio.local:8123/api/hls/3e975466eec737310974e5ff58a61dd3275aa6628630d8b703c99fc76161e444/master_playlist.m3u8?authSig=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiI2MzEwNzBlMjBhMzA0OTRmOTY0YjY1Y2E0NzE4OWQyMCIsInBhdGgiOiIvYXBpL2hscy8zZTk3NTQ2NmVlYzczNzMxMDk3NGU1ZmY1OGE2MWRkMzI3NWFhNjYyODYzMGQ4YjcwM2M5OWZjNzYxNjFlNDQ0L21hc3Rlcl9wbGF5bGlzdC5tM3U4IiwicGFyYW1zIjpbXSwiaWF0IjoxNzA5MTU2MjUxLCJleHAiOjE3MDkyNDI2NTF9.mfvF1MU5I2qifzCfHFaB6SnV0fsGleHbKMQmzhIZoXs from internal_url (http://hassio.local: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://hassio.local:8123/api/hls/46e32de6d02fefc9e0d18fc0e2d9cc6ad8ecc4e0652be999660889ddd4a28118/master_playlist.m3u8?authSig=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiI2MzEwNzBlMjBhMzA0OTRmOTY0YjY1Y2E0NzE4OWQyMCIsInBhdGgiOiIvYXBpL2hscy80NmUzMmRlNmQwMmZlZmM5ZTBkMThmYzBlMmQ5Y2M2YWQ4ZWNjNGUwNjUyYmU5OTk2NjA4ODlkZGQ0YTI4MTE4L21hc3Rlcl9wbGF5bGlzdC5tM3U4IiwicGFyYW1zIjpbXSwiaWF0IjoxNzA5MTU2NDk5LCJleHAiOjE3MDkyNDI4OTl9.-6i5WSIgmD-4XkzmqqcJw2Vn8KcioxHGhQcpPKd7xcI from internal_url (http://hassio.local:8123). Please make sure the URL is: Reachable from the cast device and either a publicly resolvable hostname or an IP address