WIZ811MJ only connects with DHCP

I have the [WIZ811MJ Ethernet network module and I’m testing it using the WebClient example program in the Ethernet.h library. It works fine if I connect using DHCP like this:

Ethernet.begin(mac);

But I don’t want to use DHCP because it uses up a lot of memory, I want to connect with the IP like this:

Ethernet.begin(mac,ip);

But it does’t set the IP.

I tried the exact same sketch on an Uno with Ethernet shield R3 and both ways worked fine. Here’s the code I’m using:

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

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
char server[] = "www.google.com";    // name address for Google (using DNS)
IPAddress ip(192,168,216,46);
EthernetClient client;

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

  Ethernet.begin(mac, ip);

  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
    // Make a HTTP request:
    client.println("GET /search?q=arduino HTTP/1.1");
    client.println("Host: www.google.com");
    client.println("Connection: close");
    client.println();
  } 
  else {
    // kf you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop()
{
  // if there are incoming bytes available 
  // from the server, read them and print them:
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();

    // do nothing forevermore:
    while(true);
  }
}

](WIZnet W5100 Network Module with Mag Jack - WIZ811MJ - DEV-09473 - SparkFun Electronics)