Actually I'm using a W5100 Hanrun HR911105A 16/02 Ethernet shield with an Arduino Uno (original).
I tried this code from the examples:
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network.
// gateway and subnet are optional:
byte mac[] = {
0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02
};
IPAddress ip(192, 168, 1, 177);
IPAddress myDns(192,168,1, 1);
IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 255, 0);
// telnet defaults to port 23
EthernetServer server(23);
boolean gotAMessage = false;
// whether or not you got a message from the client yet
void setup() {
Serial.begin(9600);
// this check is only needed on the Leonardo:
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
// start the Ethernet connection:
Serial.println("Trying to get an IP address using DHCP");
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// initialize the Ethernet device not using DHCP:
Ethernet.begin(mac, ip, myDns, gateway, subnet);
}
// print your local IP address:
Serial.print("My IP address: ");
ip = Ethernet.localIP();
for (byte thisByte = 0; thisByte < 4; thisByte++) {
// print the value of each byte of the IP address:
Serial.print(ip[thisByte], DEC);
Serial.print(".");
}
Serial.println();
// start listening for clients
server.begin();
}
void loop() {
// wait for a new client:
EthernetClient client = server.available();
// when the client sends the first byte, say hello:
if (client) {
if (!gotAMessage) {
Serial.println("We have a new client");
client.println("Hello, client!");
gotAMessage = true;
}
// read the bytes incoming from the client:
char thisChar = client.read();
// echo the bytes back to the client:
server.write(thisChar);
// echo the bytes to the server as well:
Serial.print(thisChar);
Ethernet.maintain();
}
}
That code prints the following on the serial monitor:
Trying to get an IP address using DHCP
Failed to configure Ethernet using DHCP
My IP address: 192.168.1.177.
So what is the problem? Why it is not connecting? I tried all the ethernet examples, but not one works. I don't know, maybe the problem is that I don't have a sticker of MAC address on the shield and I'm using the MAC address of the examples. Or maybe I'm writing the IP address wrong? Here is the data from the network connection details.
Connection-specific DNS Suffix: zte.com.cn
Description: Intel(R) Dual Band Wireless-AC 3165
Physical Address: 72-57-C5-BC-66-07
DHCP Enabled: Yes
IPv4 Address: 192.168.1.2
IPv4 Subnet Mask: 255.255.255.0
IPv4 Default Gateway: 192.168.1.1
IPv4 DHCP Server: 192.168.1.1
IPv4 DNS Server: 192.168.1.1
IPv4 WINS Server:
NetBIOS over Tcpip Enabled: Yes
Link-local IPv6 Address: fe80::b523:b9f2:b43c:6a8a%14
IPv6 Default Gateway:
IPv6 DNS Server:
My router is a ZTE model ZXHNH108N.
