WebServer - "server is at 0.0.0.0" and webpage is not available

Hello I have some little problem with trying Arduino Webserver example. Where the values of analog pins should be displayed in web browser.
I am using ethernet shield with w5100, Arduino Mega 2560 and Arduino IDE 1.6.4.

This is the code I am trying to use:

/*
  Web Server

 A simple web server that shows the value of the analog input pins.
 using an Arduino Wiznet Ethernet shield.

 Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13
 * Analog inputs attached to pins A0 through A5 (optional)

 created 18 Dec 2009
 by David A. Mellis
 modified 9 Apr 2012
 by Tom Igoe

 */

#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:
byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(100, 87, 203, 77);

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

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


  // start the Ethernet connection and the server:
  Ethernet.begin(mac, ip);
  server.begin();
  Serial.print("server is at ");
  Serial.println(Ethernet.localIP());
}


void loop() {
  // listen for incoming clients
  EthernetClient client = server.available();
  if (client) {
    Serial.println("new client");
    // an http request ends with a blank line
    boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.write(c);
        // if you've gotten to the end of the line (received a newline
        // character) and the line is blank, the http request has ended,
        // so you can send a reply
        if (c == '\n' && currentLineIsBlank) {
          // send a standard http response header
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println("Connection: close");  // the connection will be closed after completion of the response
          client.println("Refresh: 5");  // refresh the page automatically every 5 sec
          client.println();
          client.println("<!DOCTYPE HTML>");
          client.println("<html>");
          // output the value of each analog input pin
          for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
            int sensorReading = analogRead(analogChannel);
            client.print("analog input ");
            client.print(analogChannel);
            client.print(" is ");
            client.print(sensorReading);
            client.println("
");
          }
          client.println("</html>");
          break;
        }
        if (c == '\n') {
          // you're starting a new line
          currentLineIsBlank = true;
        }
        else if (c != '\r') {
          // you've gotten a character on the current line
          currentLineIsBlank = false;
        }
      }
    }
    // give the web browser time to receive the data
    delay(1);
    // close the connection:
    client.stop();
    Serial.println("client disconnected");
  }
}

Everything is set properly... IP adress is adapted to my local network and MAC adress is unique too.
When I record this sketch to arduino and open the Serial monitor, this will appear:

server is at 0.0.0.0

And when I type IP adress that was manully assigned to my Arduino, the web browser tells: "This webpage is not available ERR_CONNECTION_TIMED_OUT"

First I thought something is wrong with IP adress of my Arduino. But then I tried to ping Arduino with command line:

ping 100.87.203.77

Pinging 100.87.203.77 with 32 bytes of data:
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128
Reply from 100.87.203.77: bytes=32 time<1ms TTL=128

Ping statistics for 100.87.203.77:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-secons:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

So there is connectivity between my PC and Arduino (Arduino is connected to my router). And the TX and RX leds are blinking during pinging, so this IP is really assigned to my Arduino. But Serial monitor shows wrong IP and browser does not show the the page with values.

Arduino is powered with adapter and with power from USB. SD card is removed. And other Ethernet sketches work properly.

Is there anybody who knows where is the problem? :c

If you get the message "server is at 0.0.0.0" and the shield responds to a ping, then the SPI bus MISO line on the ethernet shield has failed or some other device is locking up the MISO line.

And other Ethernet sketches work properly.

Which other Ethernet sketches?

Have you tried any other server sketches? Try the second one here:
http://playground.arduino.cc/Code/WebServerST

edit: I tried the code you posted and changed only the IP to match my network settings and it worked ok on my Mega 2560 and ethernet shield.

Thanks for the reply. You are right, it was something wrong with the MISO line. I tried this code to find out if the problem is not only with SPI bus.

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

byte mac[] = {  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,2,2);

void setup() {
 Serial.begin(9600);

 // disable SD card if one in the slot
 pinMode(4,OUTPUT);
 digitalWrite(4,HIGH);

 Serial.println("Starting w5100");
 Ethernet.begin(mac,ip);

 Serial.println(Ethernet.localIP());
}

void loop() {
}

The output of Serial monitor was 0.0.0.0. So problem was in wrong contact between Arduino and this shield.

So I properly connected it again and everything is now running right!

Thanks, it can be closed.

Shield Ethernet pour Arduino w5100

Post a link to your ethernet shield.

Insure the ethernet shield is firmly and fully inserted into the Arduino, especially the ICSP pins. Those are the SPI bus pins on most SPI bus shields.

My ethernet shield is the same as yours Sir it says server is at 0.0.0.0 but my ethernet shield is ENC28J60. please reply thanks in advance