diff --git a/README.md b/README.md
index 4dad4981..1ba85316 100644
--- a/README.md
+++ b/README.md
@@ -1568,6 +1568,12 @@ Try resetting the app frontend cache:
 
 * `Configuration -> Companion App -> Debugging -> Reset frontend cache`
 
+### Casting to a remote media player does not work
+
+This could be for any number of reasons. Chromecast devices can be quite picky on network, DNS and certificate issues, as well as audio and video codecs. Check your Home Assistant log as there may be more information in there.
+
+**NOTE**: In particular, for Frigate to support casting of clips, the default ffmpeg settings for Frigate must be modified, i.e. Frigate does not encode clips in a Chromecast compatible format out of the box (specifically: audio must be enabled in the AAC codec, whether your camera supports audio or not). See the [Frigate Home Assistant documentation](https://docs.frigate.video/integrations/home-assistant) or [this issue](https://github.com/blakeblackshear/frigate/issues/3175) for more.
+
 ## Development
 
 ### Building