ESP8266 cannot connect via public domain on port 80 (use nginx proxy)

Need Help With My Project
1

Hi, I’m trying to connect my ESP8266 to my own Blynk server on my VPS.
I’m using Nginx to forward port 80 to 8080. I can register and log in success. But my ESP8266 cannot connect to port 80. got the message:
" [973963] Connecting to blynk.megavn.net:80
[974283] Packet too big: 2052".
But it can connect success via port 8080 direct.


Blynk.begin(auth, ssid, pass, "blynk.megavn.net", 80);


server {
    listen      80;
    listen [::]:80;
    server_name blynk.megavn.net ;

    location / {
        proxy_pass      http://127.0.0.1:8080;
        # header pass through configuration
        proxy_set_header        Host $host;
        proxy_set_header        X-Real-IP $remote_addr;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Forwarded-Proto $scheme;

        # extra debug headers
        add_header              X-Forwarded-For $proxy_add_x_forwarded_for;

        # actual proxying configuration
        # proxy_ssl_session_reuse on;
        proxy_redirect          default;
        proxy_read_timeout      90;# WS Headers

        # websocket support, thanks to Miguel Otero
        proxy_http_version      1.1;
        proxy_set_header        Upgrade $http_upgrade;
        proxy_set_header        Connection "upgrade";
    }
}

Please help me!

2

Why are you using port 80 instead of 8080 ?

Pete.

3

I’m running few website on that VPS.