Hi @MaxvandeLaar, I’m confident it’s because LG made a change to block unsecured websockets and only allow secure connections. I was able to verify using Postman. A connection to port 3000 (ws://) was blocked. Connections to port 3001 (wss://) are successful and I was able to register, send requests and subscribe to events.
Problem is their certificate and intermediate CA aren’t in the trust store. I haven’t found an easy solution to ignore the certificate error.
Are you able to make a fix? Does your tv support both ws and wss? 
I’m willing to assist and test if needed.
