Seeeduino ethernet - ethernet not working - faulty unit?

Products & Technology Arduino & Seeeduino
5

Hello Folks,

I have 3 seeeduino ethernet (one working ok but I lost the software) and other 2 with problem on network… I download the following code (took it from arduino docs) and got the same result: Ethernet shield was not found

#include <SPI.h>
#include <Ethernet.h>

byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(10, 0, 0, 177);

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  Ethernet.begin(mac, ip);

  if (Ethernet.hardwareStatus() == EthernetNoHardware) {
    Serial.println("Ethernet shield was not found.");
  }
  else if (Ethernet.hardwareStatus() == EthernetW5100) {
    Serial.println("W5100 Ethernet controller detected.");
  }
  else if (Ethernet.hardwareStatus() == EthernetW5200) {
    Serial.println("W5200 Ethernet controller detected.");
  }
  else if (Ethernet.hardwareStatus() == EthernetW5500) {
    Serial.println("W5500 Ethernet controller detected.");
  }
}

void loop () {}

any clue?