Wireless doesn't connect after change MAC address

[Dan Williams]

On Tue, 2013-02-12 at 11:05 -0300, Carlos Patricio Amigo Haering wrote:
> Hello everybody,
> 
> I changed the MAC address(with ifconfig wlan0 hw ether) of my wireless 
> interface Intel to do a little experiment (Link aggregation) but 
> suddenly my wireless NIC doesn't work anymore. I rebooted my Ubuntu 
> 12.10, also the interface has the original MAC again and still doesn't 
> connect to any SSID. wpa_cli shows me:
> 
> 
> <3>SME: Trying to authenticate with 00:21:29:92:e9:a5 
> (SSID='LAB_Wireless' freq=2462 MHz)
> <3>Trying to associate with 00:21:29:92:e9:a5 (SSID='LAB_Wireless' 
> freq=2462 MHz)
> <3>Associated with 00:21:29:92:e9:a5
> <3>CTRL-EVENT-DISCONNECTED bssid=00:21:29:92:e9:a5 reason=15
> <3>CTRL-EVENT-SCAN-RESULTS
> <3>WPS-AP-AVAILABLE-PIN
> <3>SME: Trying to authenticate with 00:21:29:92:e9:a5 
> (SSID='LAB_Wireless' freq=2462 MHz)
> <3>Trying to associate with 00:21:29:92:e9:a5 (SSID='LAB_Wireless' 
> freq=2462 MHz)
> <3>Associated with 00:21:29:92:e9:a5
> <3>CTRL-EVENT-DISCONNECTED bssid=00:21:29:92:e9:a5 reason=15
> <3>CTRL-EVENT-SCAN-RESULTS
> <3>WPS-AP-AVAILABLE-PIN
> <3>SME: Trying to authenticate with 00:21:29:92:e9:a5 
> (SSID='LAB_Wireless' freq=2462 MHz)
> <3>Trying to associate with 00:21:29:92:e9:a5 (SSID='LAB_Wireless' 
> freq=2462 MHz)
> <3>Associated with 00:21:29:92:e9:a5
> <3>CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3
> 
> 
> The reason 3 is when the network manager ask me again for the password 
> of the SSID, and do the same process to all the available wifi networks 
> without establish connection. The reason 15 I don't know what means. 
> What's going on ? What i'm doing wrong?

You may not have a recent enough version of wpa_supplicant.  Any idea
idea what version of the supplicant you're using?  This issue was
addressed between hostap 1.0-rc1 and hostap 1.0-rc2 on Dec 3, 2011.

Dan