Hi Ike,

This is strange, from the log you collected so far, it seems that the client send the we upgrade request bur receive a 404 error.
On the server side, it seems that the WebSocket upgrade request was never received.
To try to determine if the problem lies on the client or server side, would you be able to conduct a test by pointing your client to our demo server?
You should set "https://push.lightstreamer.com" as the URL and "WELCOME" as the adapter set.