Unable to Connect to Open Network

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I have a user with AR9285 who was able to associate with and use an open network
(WHU-STU in the list below).

% ifconfig wlan0 scan
SSID/MESH ID                      BSSID              CHAN RATE    S:N     INT CAPS
WHU-STU                           70:d9:31:0e:5e:20    1   54M  -81:-96   300 ES   HTCAP WME ATH
CU_3n2r                           80:ee:25:a7:af:c8    6   54M  -93:-96   100 EP   RSN WPS HTCAP WME BSSLOAD
HUAWEI-4QGNEY                     5c:03:39:dd:2e:7c   11   54M  -87:-96   100 EPS  HTCAP WME ATH WPS RSN
WHU-STU                           70:d9:31:03:06:40   13   54M  -92:-96   300 ES   HTCAP WME ATH
WHU-STU                           70:d9:31:03:19:e0   13   54M  -93:-96   300 ES   HTCAP WME ATH
Xiaomi_102                        50:d2:f5:87:7a:5a    2   54M  -91:-96   100 EP   APCHANREP APCHANREP WPA RSN WPS HTCAP WME BSSLOAD
ChinaNet-r6xR                     ec:f0:fe:71:ea:53    3   54M  -93:-96   100 EPS  WPA RSN HTCAP WME BSSLOAD
ChinaNet-wqSx                     6c:d2:ba:94:73:d3    4   54M  -93:-96   100 EPS  WPA RSN HTCAP WME BSSLOAD
WHU-STU                           fc:b6:98:f5:cc:00    5   54M  -85:-96   300 ES   HTCAP WME ATH
WHU-STU                           70:d9:31:0e:2c:00    5   54M  -73:-96   300 ES   HTCAP WME ATH   # <-------- the one supposed to work
WHU-STU                           70:d9:31:0e:19:20    5   54M  -86:-96   300 ES   HTCAP WME ATH
WHU-STU                           fc:b6:98:f6:01:a0    5   54M  -88:-96   300 ES   HTCAP WME ATH
WHU-STU                           70:d9:31:0e:1b:e0    5   54M  -94:-96   300 ES   HTCAP WME ATH
CMCC-UKg3                         14:ad:ca:ce:ea:fe    8   54M  -94:-96   100 EPS  APCHANREP APCHANREP WPA RSN HTCAP WME BSSLOAD
WHU-STU                           fc:b6:98:f6:0a:20    9   54M  -81:-95   300 ES   HTCAP WME ATH
WHU-STU                           70:d9:31:12:9b:80    9   54M  -85:-95   300 ES   HTCAP WME ATH
WHU-STU                           fc:b6:98:f5:cc:80    9   54M  -85:-95   300 ES   HTCAP WME ATH
WHU-STU                           fc:b6:98:f6:22:80    9   54M  -92:-95   300 ES   HTCAP WME ATH

When using wpa_supplicant 2.9 they are able to associate and dhclient is able to
obtain an IP address:

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 1c:4b:d6:ca:3e:ac
        inet 10.134.135.167/17 broadcast 10.134.255.255
        groups: wlan
        ssid WHU-STU channel 13 (2472 MHz 11g ht/20) bssid fc:b6:98:f6:12:80
        regdomain 96 indoor ecm authmode OPEN privacy OFF txpower 20 bmiss 7
        scanvalid 60 protmode CTS ampdulimit 64k shortgi -stbctx stbcrx -ldpc
        -uapsd wme burst roaming MANUAL bintval 300
        parent interface: ath0
        media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
        status: associated
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

However using wpa_supplicant 2.10 they associate 50% of the time but 100% of the
time are unable to communicate with the AP:

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500     
        ether 1c:4b:d6:ca:3e:ac                                                 
        inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255               
        groups: wlan                          
        ssid WHU-STU channel 5 (2432 MHz 11g ht/20) bssid 70:d9:31:0e:2c:00     
        regdomain 96 indoor ecm authmode WPA privacy MIXED deftxkey UNDEF       
        txpower 20 bmiss 7 scanvalid 60 protmode CTS ampdulimit 64k shortgi     
        -stbctx stbcrx -ldpc -uapsd wme burst roaming MANUAL bintval 300        
        parent interface: ath0                
        media: IEEE 802.11 Wireless Ethernet DS/1Mbps mode 11ng                 
        status: associated                    
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>


Wpa_supplicant 2.10 configures the device with:
	authmode WPA privacy MIXED deftxkey UNDEF

While with wpa_supplicant 2.9 the following are correctly set:
	authmode OPEN privacy OFF

It appears that wpa_supplicant has configured WPA even though the following are in wpa_supplicant.conf.

network={                                                                                                                                                                                  
 ssid="WHU-STU"                                                                                                                                                                           
 key_mgmt=NONE                                                                                                                                                                             
}

The same drivers are in use.

What am I missing? Or is there something else going on?


-- 
Cheers,
Cy Schubert <Cy.Schubert@xxxxxxxxxxxxx>
FreeBSD UNIX:  <cy@xxxxxxxxxxx>   Web:  http://www.FreeBSD.org
NTP:           <cy@xxxxxxxxxx>    Web:  https://nwtime.org

			e**(i*pi)+1=0


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