The Lightstreamer Client SDK does not provide an option to configure a timeout such that if a connection cannot be established within the timeout, then the client is forced to give up.
However you can easily implement a similar functionality by using the same pattern that was discussed in your previous thread:

Code:
Timer timer = null;


void onStatusChange(status) {
  if (status.equals("DISCONNECTED:WILL-RETRY")) {
    if (timer == null) {
      timer = new Timer();
      timer.schedule(() -> {
        if (!client.getStatus().startsWith("CONNECTED")) {
          client.disconnect();
        }
      }, TIMEOUT);
    }
  }
}