Arduino telnet client problem no response but connection ok

[Gab Gab]

Hi everyone!

I created an Arduino sketch to connect to the GQRX, the connection is ok,

with Arduino Ethernet and Raspberry (GQRX runs here)

but no message seems to arrive at the server.

With the client I send the command f for the frequency

Some friends have some ideas, I'll attach the code. thanks gab gab

#include <SPI.h>

#include <Ethernet.h>

// Replace with your network settings

byte mac[] = {

  0xDE,

  0xAD,

  0xAA,

  0xEF,

  0xFE,

  0xED

};

IPAddress ip(192, 168, 100, 82);

IPAddress server(192, 168, 100, 66); // Replace with your server's IP

unsigned int serverPort = 7356;

EthernetClient client;

void setup() {

  // Initialize serial communication for debugging

  Serial.begin(9600);

  // Initialize Ethernet interface

  Ethernet.begin(mac, ip);

}

void loop() {

  // Connect to the Telnet server

  if (Serial.available() > 0) { // Check if there's incoming data

    char incomingByte = Serial.read(); // Read the incoming byte

    // Do something with the incoming byte

    if (incomingByte == 'f') {  //get current frequency

      if (client.connect(server, serverPort)) {

       

        Serial.println("connected");

        delay(600);

       client.println( incomingByte);

         delay(600);        

        // Read and print the server's response

        while (client.available()) {

          char c = client.read();

          Serial.print(c);        

        }

       client.stop();

        Serial.println("Disconnected from server");

      } else {

        Serial.println("Connection failed");

      }

    }

  }

}

[Gab Gab]

resolved! I will missed ip in allowed hosts.

gab gab