diff --git a/homeassistant/components/plex/media_player.py b/homeassistant/components/plex/media_player.py
index 650ed2c89b0..f9c40f1edc3 100644
--- a/homeassistant/components/plex/media_player.py
+++ b/homeassistant/components/plex/media_player.py
@@ -492,6 +492,10 @@ class PlexMediaPlayer(MediaPlayerEntity):
                 "Client is not currently accepting playback controls: %s", self.name
             )
             return
+        if not self.plex_server.has_token:
+            _LOGGER.warning(
+                "Plex integration configured without a token, playback may fail"
+            )
 
         src = json.loads(media_id)
         if isinstance(src, int):
diff --git a/homeassistant/components/plex/server.py b/homeassistant/components/plex/server.py
index 4dcdda044eb..dc05a727fee 100644
--- a/homeassistant/components/plex/server.py
+++ b/homeassistant/components/plex/server.py
@@ -537,6 +537,11 @@ class PlexServer:
         """Return the plexapi PlexServer instance."""
         return self._plex_server
 
+    @property
+    def has_token(self):
+        """Return if a token is used to connect to this Plex server."""
+        return self._token is not None
+
     @property
     def accounts(self):
         """Return accounts associated with the Plex server."""