When WebSockets work locally but fail in production, it’s almost always the server/proxy, not Laravel.
Check these 3 things:
1, Nginx/Apache must allow WebSocket upgrade headers: Upgrade / Connection: upgrade
2, Use wss:// in production (not ws://).
3, WebSocket port must be open and the Reverb/WebSocket process must be running (Supervisor/systemd).
If any of these are wrong, the browser will fail the connection every time.