WiFi Client - TCP Communication

[PikaCZ]

Hi,
I am using WiFiClient to connect my ESP32 to a TCP server on my computer. Everything works nice until the server (PC) closes the connection.
When the server closes the connection, the function that returns the connection status waits exactly 100s before returning the connection status
When debugging in the terminal, you can see exactly when the server closed the connection. In terminal I see line like below

Code: Untitled.txt Select all

[812835][D][WiFiClient.cpp:545] connected(): Disconnected: RES: 0, ERR: 128 

How to make the function WiFiClient.connected() return the status immediately ? At the same time when the error message is written out ?

My code below

Code: Untitled.c Select all

.....



//Connecting to server

while(!RemoteClient.connect(server_host, server_port))

{

    Serial.println("Waiting beafore connect");

    delay(2500);

    ledState = !ledState;

    digitalWrite(LED_GREEN_PIN, ledState);

    Serial.print("Connecting to ");

    Serial.println(server_host);

}

......



void loop() {





if (RemoteClient.connected()) //<---- Here the program stops for 100s after the server breaks communication

{ 

....

}

else

{

  sleep(100);

  Serial.println("No connction with server. Reconnect");

  Serial.print(".");

  RemoteClient.stop();

  ConnectToServer();

 }



}

Bellow log from serial monitor

Code: Untitled.txt Select all

18:27:35.591 -> [812835][D][WiFiClient.cpp:545] connected(): Disconnected: RES: 0, ERR: 128   

18:29:15.593 -> No connction with server. Reconnect

18:29:15.593 -> .Connecting to server                                                                  

18:29:38.255 -> [935514][D][WiFiClient.cpp:545] connected(): Disconnected: RES: 0, ERR: 128  

18:31:18.272 -> No connction with server. Reconnect

18:31:18.272 -> .Connecting to server