CC3100BOOST: Password not accepted in WPA2 security mode

I am using CC3100 BOOST connected to stm32f7 DISCOVERY board. I set the CC3100 device in access point mode with WPA2 security. 
I am trying to connect to the Wifi network from a laptop running Windows and I get "The key or passphrase is incorrect" error. 
I tried copy and pasting the password, so I don't mistype it, with the same result. 
The issue comes up with WEP security as well, so I think the issue is not security type specific.

Below is the configuration code I use :
excerpt from sl_common.h file :

/* Configuration of the device when it comes up in AP mode */
#define SSID_AP_MODE       "FeedbacCar"       /* SSID of the CC3100 in AP mode */
#define PASSWORD_AP_MODE   "abc"                  /* Password of CC3100 AP */
#define SEC_TYPE_AP_MODE   SL_SEC_TYPE_WEP    /* Can take SL_SEC_TYPE_WEP or
                                                * SL_SEC_TYPE_WPA as well */

excerpt  from my .c file :

/* Configure CC3100 to start in AP mode */
        retVal = sl_WlanSetMode(ROLE_AP);
        if(retVal < 0)
            LOOP_FOREVER();

        /* Configure the SSID of the CC3100 */
        retVal = sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SSID,
                pal_Strlen(SSID_AP_MODE), (_u8 *)SSID_AP_MODE);
        if(retVal < 0)
            LOOP_FOREVER();

        SecType = SEC_TYPE_AP_MODE;
        /* Configure the Security parameter the AP mode */
        retVal = sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SECURITY_TYPE, 1,
                (_u8 *)&SecType);
        if(retVal < 0)
            LOOP_FOREVER();

        retVal = sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_PASSWORD, pal_Strlen(PASSWORD_AP_MODE),
                (_u8 *)PASSWORD_AP_MODE);
        if(retVal < 0)
            LOOP_FOREVER();

        retVal = sl_Stop(SL_STOP_TIMEOUT);
        if(retVal < 0)
            LOOP_FOREVER();

        CLR_STATUS_BIT(g_Status, STATUS_BIT_IP_ACQUIRED);

I would appreciate any help showing me where to start looking for the problem.