Arch Linux

A.W.A.M

Member

Registered: 2011-03-11

Posts: 2

Wireless: SSID is lost when wpa_supplicant is started, no connection

Hi,

I'm trying to set up the integrated r8187se wireless adapter of my notebook on a fresh Arch install. What I've tried looks like this:

# iwlist wlan0 scan
wlan0    Failed to read scan data : Operation not permitted
# ip link set wlan0 up
# iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: 00:18:E7:25:A6:73
                    ESSID:"Connectify-asdefjak"
                    Protocol:IEEE 802.11g
                    Mode:Master
                    Channel:1
                    Encryption key:on
                    Bit Rates:54 Mb/s
                    Extra: Rates (Mb/s): 1 2 5.5 6 9 11 12 18 24 36 48 54 
                    Quality=92/100  Signal level=-31 dBm  Noise level=-115 dBm
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 3ms ago

# iwconfig wlan0 essid "connectify-asdefjak"
# iwconfig wlan0
wlan0     802.11b/g  ESSID:"connectify-asdefjak"  
          Mode:Managed  Access Point: Not-Associated   Bit Rate:11 Mb/s   
          Retry:on   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
# wpa_supplicant -c /etc/wpa_supplicant.conf -i wlan0

After that wpa_supplicant runs forever without any output. The access point (connectify on a Windows 7 host) doesn't report any clients. If I CTRL-C it or just use another VT, the output of iwconfig looks like this:

wlan0     802.11b/g  Mode:Managed  Channel=163  
          Access Point: Not-Associated   Bit Rate:11 Mb/s   
          Retry:on   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

When wpa_supplicant starts, the following happens in dmesg:

[ 5113.042013] r8180: Bringing up iface
[ 5113.242102] r8180: Card successfully reset
[ 5113.984682] r8180: WIRELESS_MODE_G
[ 5113.984686] 

After I CTRL-C it, scanning doesn't work again and I have to run "ip link set wlan0 up" again.

wpa_supplicant.conf:

network={
	ssid="connectify-asdefjak"
	#psk="testtest"
	psk=97942bbe80fde5e9e72d659a1d4c5552881e19d7f5d8bab256a05b24ef412b60
	key_mgmt=WPA-PSK
	pairwise=CCMP TKIP
	group=CCMP TKIP
}

The relevant part of lspci -v:

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8187SE Wireless LAN Controller (rev 22)
	Subsystem: Micro-Star International Co., Ltd. Device 6894
	Flags: bus master, fast devsel, latency 0, IRQ 18
	I/O ports at b000 [size=256]
	Memory at dfc00000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [70] Express Legacy Endpoint, MSI 00
	Kernel driver in use: r8180
	Kernel modules: r8187se

lsmod:

Module                  Size  Used by
nls_cp437               4605  1 
vfat                    8739  1 
fat                    43074  1 vfat
snd_hda_codec_realtek   222124  1 
arc4                    1086  0 
joydev                  7439  0 
rtl8192cu              87408  0 
rtl8192c_common        52827  1 rtl8192cu
rtlwifi                83373  1 rtl8192cu
mac80211              191541  3 rtl8192cu,rtl8192c_common,rtlwifi
snd_hda_intel          19101  0 
i915                  612516  1 
snd_hda_codec          66954  2 snd_hda_codec_realtek,snd_hda_intel
uvcvideo               57363  0 
uas                     6440  0 
cdc_wdm                 6865  0 
ums_realtek             3710  0 
cdc_acm                13412  0 
cdc_ether               3474  0 
usbnet                 12966  1 cdc_ether
usb_storage            35279  2 ums_realtek
cfg80211              138620  2 rtlwifi,mac80211
videodev               70542  1 uvcvideo
drm_kms_helper         21997  1 i915
r8187se               159982  0 
evdev                   7278  0 
drm                   147782  2 i915,drm_kms_helper
r8169                  35935  0 
psmouse                56431  0 
iTCO_wdt               10293  0 
snd_hwdep               4942  1 snd_hda_codec
snd_pcm                60015  2 snd_hda_intel,snd_hda_codec
snd_timer              15374  1 snd_pcm
snd                    43593  6 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
rfkill                 12406  1 cfg80211
media                   8545  2 uvcvideo,videodev
i2c_algo_bit            4423  1 i915
i2c_core               16625  5 i915,videodev,drm_kms_helper,drm,i2c_algo_bit
processor              21876  0 
intel_agp               8720  1 i915
eeprom_93cx6            1012  1 r8187se
intel_gtt              11417  3 i915,intel_agp
wmi                     7295  0 
pcspkr                  1375  0 
soundcore               4986  1 snd
iTCO_vendor_support     1545  1 iTCO_wdt
mii                     3375  2 usbnet,r8169
thermal                 6595  0 
sg                     20982  0 
serio_raw               3390  0 
ac                      2505  0 
battery                 8865  0 
snd_page_alloc          5869  2 snd_hda_intel,snd_pcm
button                  3646  1 i915
video                   9780  1 i915
agpgart                22096  3 drm,intel_agp,intel_gtt
ext4                  337724  1 
mbcache                 4249  1 ext4
jbd2                   59488  1 ext4
crc16                   1069  1 ext4
sd_mod                 26147  5 
pata_acpi               2388  0 
uhci_hcd               19609  0 
ata_piix               18561  2 
libata                154449  2 pata_acpi,ata_piix
ehci_hcd               34935  0 
scsi_mod              111801  5 uas,usb_storage,sg,sd_mod,libata
usbcore               119644  13 rtl8192cu,rtlwifi,uvcvideo,uas,cdc_wdm,ums_realtek,cdc_acm,cdc_ether,usbnet,usb_storage,uhci_hcd,ehci_hcd

(I had plugged in another wireless adapter for testing (rtl8192cu) but it didn't work either)

The adapter works fine on Windows XP and the Kubuntu Live CD (11.04)