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[on:]

When I'm doing

status = WiFi.begin([ssid],[pass]);
Serial.println(status);

Status is neither WL_CONNECTED nor WL_IDLE_STATUS, which are the two possible responses outlined in the official reference
http://arduino.cc/en/Reference/WiFiBegin

Status is the number 4.
and of course, I couldn't connect to wifi
What???

I've pressed the reset button a million times, is there a more powerful factory restore button?

[Reply #1 on:]

It would help to see all of your code. The number you're getting may be because of the network you're trying to connect to. If you're trying to connect to a WEP network, using "pass" is not going to work, as you have to provide the hex key to gain access. Again, seeing all of your code would be very helpful.

[Reply #2 on:]

What values do WL_CONNECTED and WL_IDLE_STATUS correspond to?

Why are ssid and pass in square brackets in that call?

[Reply #3 on:]

What values do WL_CONNECTED and WL_IDLE_STATUS correspond to?

.../WiFi/utility/wl-definitions.h:

Code:

typedef enum {
WL_NO_SHIELD = 255,
        WL_IDLE_STATUS = 0,
        WL_NO_SSID_AVAIL,
        WL_SCAN_COMPLETED,
        WL_CONNECTED,
        WL_CONNECT_FAILED,
        WL_CONNECTION_LOST,
        WL_DISCONNECTED
} wl_status_t;

Status 4 is WL_CONNECT_FAILED. See .../WiFi/WiFi.cpp

Code:

int WiFiClass::begin(char* ssid, const char *passphrase)
{
uint8_t status = WL_IDLE_STATUS;
uint8_t attempts = WL_MAX_ATTEMPT_CONNECTION;

    // set passphrase
    if (WiFiDrv::wifiSetPassphrase(ssid, strlen(ssid), passphrase, strlen(passphrase))!= WL_FAILURE)
    {
     do
     {
     delay(WL_DELAY_START_CONNECTION);
     status = WiFiDrv::getConnectionStatus();
     }
   while ((( status == WL_IDLE_STATUS)||(status == WL_SCAN_COMPLETED))&&(--attempts>0));
    }else{
    status = WL_CONNECT_FAILED;
    }
    return status;
}