This bug have in Ubuntu 12.04 LTS beta1 and the log is...

tuxmatrix@USS-StarGazer:~$ tail -f /var/log/syslog 
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
starting connection 'RWFCI01'
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: disconnected -> prepare (reason 'none') [30 40 0]
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) scheduled...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) started...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) scheduled...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) complete.
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) starting...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: prepare -> config (reason 'none') [40 50 0]
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation 
(wlan0/wireless): access point 'RWFCI01' has security, but secrets are required.
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: config -> need-auth (reason 'none') [50 60 0]
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) complete.
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) scheduled...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) started...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: need-auth -> prepare (reason 'none') [60 40 0]
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) scheduled...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) complete.
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) starting...
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: prepare -> config (reason 'none') [40 50 0]
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation 
(wlan0/wireless): connection 'RWFCI01' has security, and secrets exist.  No new 
secrets needed.
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Config: added 'ssid' 
value 'RWFCI01'
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Config: added 
'scan_ssid' value '1'
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Config: added 
'key_mgmt' value 'WPA-PSK'
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Config: added 'psk' 
value '<omitted>'
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) complete.
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> Config: set interface 
ap_scan to 1
Mar 15 12:36:05 USS-StarGazer kernel: [14353.609129] rtl8192c_common: Loading 
firmware file rtlwifi/rtl8192cfw.bin
Mar 15 12:36:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: disconnected -> scanning
Mar 15 12:36:06 USS-StarGazer wpa_supplicant[2697]: Trying to authenticate with 
00:1a:3f:48:cd:06 (SSID='RWFCI01' freq=2462 MHz)
Mar 15 12:36:06 USS-StarGazer wpa_supplicant[2697]: CTRL-EVENT-DISCONNECTED 
bssid=00:1a:3f:48:cd:06 reason=2
Mar 15 12:36:06 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: scanning -> authenticating
Mar 15 12:36:06 USS-StarGazer kernel: [14354.797927] wlan0: deauthenticating 
from 00:1a:3f:48:cd:06 by local choice (reason=2)
Mar 15 12:36:06 USS-StarGazer wpa_supplicant[2697]: Trying to associate with 
00:1a:3f:48:cd:06 (SSID='RWFCI01' freq=2462 MHz)
Mar 15 12:36:06 USS-StarGazer wpa_supplicant[2697]: Association request to the 
driver failed
Mar 15 12:36:06 USS-StarGazer kernel: [14354.808295] wlan0: authenticate with 
00:1a:3f:48:cd:06 (try 1)
Mar 15 12:36:06 USS-StarGazer kernel: [14354.810642] wlan0: authenticated
Mar 15 12:36:06 USS-StarGazer kernel: [14354.810954] wlan0: failed to insert 
Dummy STA entry for the AP (error -17)
Mar 15 12:36:06 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: authenticating -> associating
Mar 15 12:36:11 USS-StarGazer kernel: [14359.817904] rtl8192c_common: Loading 
firmware file rtlwifi/rtl8192cfw.bin
Mar 15 12:37:05 USS-StarGazer NetworkManager[929]: <warn> Activation 
(wlan0/wireless): association took too long.
Mar 15 12:37:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: config -> need-auth (reason 'none') [50 60 0]
Mar 15 12:37:05 USS-StarGazer NetworkManager[929]: <warn> Activation 
(wlan0/wireless): asking for new secrets
Mar 15 12:37:05 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: associating -> disconnected
Mar 15 12:37:05 USS-StarGazer NetworkManager[929]: <warn> Couldn't disconnect 
supplicant interface: This interface is not connected.
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: get_secret_flags: assertion 
`is_secret_prop (setting, secret_name, error)' failed
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) scheduled...
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) started...
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: need-auth -> prepare (reason 'none') [60 40 0]
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) scheduled...
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 1 of 5 (Device Prepare) complete.
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) starting...
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: prepare -> config (reason 'none') [40 50 0]
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation 
(wlan0/wireless): connection 'RWFCI01' has security, and secrets exist.  No new 
secrets needed.
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Config: added 'ssid' 
value 'RWFCI01'
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Config: added 
'scan_ssid' value '1'
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Config: added 
'key_mgmt' value 'WPA-PSK'
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Config: added 'psk' 
value '<omitted>'
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Activation (wlan0) 
Stage 2 of 5 (Device Configure) complete.
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> Config: set interface 
ap_scan to 1
Mar 15 12:37:45 USS-StarGazer kernel: [14453.949040] rtl8192c_common: Loading 
firmware file rtlwifi/rtl8192cfw.bin
Mar 15 12:37:45 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: disconnected -> scanning
Mar 15 12:37:46 USS-StarGazer wpa_supplicant[2697]: Trying to authenticate with 
00:1a:3f:48:cd:06 (SSID='RWFCI01' freq=2462 MHz)
Mar 15 12:37:46 USS-StarGazer wpa_supplicant[2697]: CTRL-EVENT-DISCONNECTED 
bssid=00:1a:3f:48:cd:06 reason=2
Mar 15 12:37:46 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: scanning -> authenticating
Mar 15 12:37:46 USS-StarGazer kernel: [14455.137920] wlan0: deauthenticating 
from 00:1a:3f:48:cd:06 by local choice (reason=2)
Mar 15 12:37:46 USS-StarGazer kernel: [14455.148277] wlan0: authenticate with 
00:1a:3f:48:cd:06 (try 1)
Mar 15 12:37:46 USS-StarGazer kernel: [14455.151424] wlan0: authenticated
Mar 15 12:37:46 USS-StarGazer wpa_supplicant[2697]: Trying to associate with 
00:1a:3f:48:cd:06 (SSID='RWFCI01' freq=2462 MHz)
Mar 15 12:37:46 USS-StarGazer wpa_supplicant[2697]: Association request to the 
driver failed
Mar 15 12:37:46 USS-StarGazer kernel: [14455.151792] wlan0: failed to insert 
Dummy STA entry for the AP (error -17)
Mar 15 12:37:46 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: authenticating -> associating
Mar 15 12:37:51 USS-StarGazer kernel: [14460.157175] rtl8192c_common: Loading 
firmware file rtlwifi/rtl8192cfw.bin
Mar 15 12:38:46 USS-StarGazer NetworkManager[929]: <warn> Activation 
(wlan0/wireless): association took too long.
Mar 15 12:38:46 USS-StarGazer NetworkManager[929]: <info> (wlan0): device state 
change: config -> need-auth (reason 'none') [50 60 0]
Mar 15 12:38:46 USS-StarGazer NetworkManager[929]: <warn> Activation 
(wlan0/wireless): asking for new secrets
Mar 15 12:38:46 USS-StarGazer NetworkManager[929]: <info> (wlan0): supplicant 
interface state: associating -> disconnected
Mar 15 12:38:46 USS-StarGazer NetworkManager[929]: <warn> Couldn't disconnect 
supplicant interface: This interface is not connected
tuxmatrix@USS-StarGazer:~$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family 
DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series 
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family 
USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family 
High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI 
Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI 
Express Root Port 2 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family 
USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC 
Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 
6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus 
Controller (rev 05)
00:1f.6 Signal processing controller: Intel Corporation 6 Series/C200 Series 
Chipset Family Thermal Management Controller (rev 05)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 
802.11b/g/n WiFi Adapter (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI 
Express Gigabit Ethernet controller (rev 06)

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https://bugs.launchpad.net/bugs/929244

Title:
  Cannot connect to wireless network in 12.04 Alpha 2

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