UIPEthernet: How to detect if UIPClient got disconnected?

Projects General Guidance
1

Hello,

I'm using an ENC28J60 ethernet module with UIPEthernet library and I want to establish a persistent and reliable connection to a telnet server. My question is how do i detect, if my client got disconnected (because cable connection failed, or remote telnet server closed connection, etc..). Because then I need to reconnect to ensure a proper connectivity.

I tried using client.connected() return value in a while loop to detect, if the client is still connected but even if I unplug the network cable it's still returning 1.

Here is a snippet of my code:

#include <UIPEthernet.h>

EthernetClient client;

void setup() {

// Initialize all the network stuff, IP, mac, dhcp, ...

}

void loop() {

if (client.connect(IPAddress(192,168,171,1),1012))
    {
		Serial.println(F("Connected successfully"));
		
		while(client.connected())
		{
			// Receive data from telnet server...
			// Even if I unplug the network cable client.connected() is still true/1 .....
		}
		
		Serial.println(F("Got disconnected. Reconnecting..."));
                client.stop();
	}
else
    {
      Serial.println(F("Connection failed, retrying..."));
    }