Yes, please tell me which part you can't connect to. Since it's a communication project, you should follow the Arduino circuit configuration, server, program, network, etc. that you're installing. And I looked at the learning content of the questioner. It seems that there are parts that you skipped without watching the video. I'll tell you again that you should listen to it in order and run the servers to practice smoothly. Since you gave me 1 point in the course review due to your personal problem of not being able to connect from the perspective of the learner, I think I have to take care of the part that you can't do. I would be very grateful if you could tell me the reason why it doesn't work again.