Build : R50-7942.0.0 


logs attached, 
link: https://pantheon.corp.google.com/storage/browser/chromeos-autotest-results/54600363-chromeos-test/chromeos3-row1-rack2-host16/?debugUI=CLOUD

START	network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa	network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa	timestamp=1456010476	localtime=Feb 20 15:21:16	
	FAIL	network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa	network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa	timestamp=1456011081	localtime=Feb 20 15:31:21	Failed on the following attempts:
  [{'end_time': '2016-02-20T15:23:03.848079927-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:22:32.696472917-08:00',
    'try': 1},
   {'end_time': '2016-02-20T15:23:52.726282597-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:23:18.558061607-08:00',
    'try': 2},
   {'end_time': '2016-02-20T15:24:38.466093428-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:24:07.364690222-08:00',
    'try': 3},
   {'end_time': '2016-02-20T15:25:23.946242944-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:24:52.855100347-08:00',
    'try': 4},
   {'end_time': '2016-02-20T15:26:24.882501274-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:25:38.706520398-08:00',
    'try': 5},
   {'end_time': '2016-02-20T15:27:10.402325680-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:26:39.294299129-08:00',
    'try': 6},
   {'end_time': '2016-02-20T15:27:55.976150456-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:27:24.858216015-08:00',
    'try': 7},
   {'end_time': '2016-02-20T15:28:41.717438078-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:28:10.605442098-08:00',
    'try': 8},
   {'end_time': '2016-02-20T15:29:33.377889735-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:28:56.236551571-08:00',
    'try': 9},
   {'end_time': '2016-02-20T15:30:19.117980601-08:00',
    'error': 'FAIL(Association timed out)',
    'start_time': '2016-02-20T15:29:47.996815751-08:00',
    'try': 10}]
  With the assoc_params:
  {'association_timeout': 30,
   'autoconnect': None,
   'bgscan_config': <autotest_lib.client.common_lib.cros.network.xmlrpc_datatypes.BgscanConfiguration object at 0x7fe0dd7b0090>,
   'configuration_timeout': 30,
   'discovery_timeout': 45,
   'expect_failure': False,
   'guid': None,
   'is_hidden': False,
   'save_credentials': False,
   'security_config': WPAConfig(psk='chromeos', wpa_ciphers=['CCMP', 'TKIP'], wpa_gtk_rekey_period=None, wpa_ptk_rekey_period=None, wpa_mode=3, use_strict_rekey=None, wpa_gmk_rekey_period=None, wpa2_ciphers=['CCMP'], xmlrpc_struct_type_key='WPAConfig', security='psk'),
   'ssid': 'f5d8236-4_v2_g_ch5_wpa',
   'station_type': None,
   'xmlrpc_struct_type_key': 'AssociationParameters'}
  Debug info: {'+++PARSE DATA+++': '+++PARSE DATA+++',
   'AP Info': "{'2.4 GHz MAC Address': 'ec:1a:59:28:8b:d6',\n '5 GHz MAC Address': 'N/A',\n 'Controller class': 'BelkinF5D8236APConfigurator',\n 'Hostname': 'chromeos3-row4-rack2-host2',\n 'Router name': 'f5d8236-4 v2'}",
   'DUT': '00:15:00:c6:a3:bd',
   'SSID': 'f5d8236-4_v2_g_ch5_wpa',
   'kernel_version': '3.8.11',
   'wifi_firmware_version': '16.229726.0'}
  DUT MAC:00:15:00:c6:a3:bd
END FAIL	network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa	network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa	timestamp=1456011081	localtime=Feb 20 15:31:21	
 

Deleted: 54600363-chromeos-test-chromeos3-row1-rack2-host16-network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa.tgz 1.6 MB

54600363-chromeos-test-chromeos3-row1-rack2-host16-network_WiFi_ChaosConnectDisconnect.f5d8236-4_v2_g_ch5_wpa.tgz 1.6 MB Download