Arduino WiFly connects to server but doesn't send

Arduino WiFly connects to server but doesn't send

I have a WiFly shield (https://www.sparkfun.com/products/9954) connected to an arduino Mega 2560.
I try to connect to a server I made and I succeed (or so the arduino says) but no connection or data is received on the server side.
I tested the server with telnet and it works.
Here's my arduino code:
char passphrase[] = "passphrase";
char ssid[] = "";

uint8_t server[] = { 192, 168, 0, 4 };

WiFlyClient client(server, 9050);

int val = 0;

void setup()
{
  Serial.begin(9600);

  Serial.println("Serial begun!");

  WiFly.begin();

  Serial.println("WiFly begun! :D");

  if (!WiFly.join(ssid, passphrase)) {
    Serial.println("Association failed.");
    while (1) {
      // Hang on failure.
    }
  } 

  Serial.println("connecting...");

  if (client.connect()) {
    Serial.println("connected");
    client.println("hello");
}

  } else {
    Serial.println("connection failed");
  }
}
The serial prints everything ok.
Any ideas what's going on?