[CentOS] wifi doesnt work on centos 5.4

Agile Aspect agile.aspect at gmail.com
Sat Jan 23 07:53:10 UTC 2010


On Fri, Jan 22, 2010 at 11:20 PM, Arvind P R <iinfi1 at gmail.com> wrote:
> hi all,
> this is my first hit on the mailing list. hope i m posting in the right
> place.
> well, i have a dell vostro 1510 laptop with broadcom wifi adapter. n it
> doesnt work! :(
> i installed the wifi drivers with ndiswrapper.
>
> iwconfig shows the following.
>
> [root at laptop ~]# iwconfig
> lo        no wireless extensions.
>
> eth0      no wireless extensions.
>
> sit0      no wireless extensions.
>
> wlan0     IEEE 802.11g  ESSID:off/any  Nickname:"laptop"
>           Mode:Managed  Frequency:2.417 GHz  Access Point: Not-Associated
>           Bit Rate=54 Mb/s   Tx-Power:32 dBm
>           RTS thr=2347 B   Fragment thr=2346 B
>           Encryption key:off
>           Power Management:off
>           Link Quality:0  Signal level:0  Noise level:0
>           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
>           Tx excessive retries:0  Invalid misc:0   Missed beacon:0
>
> strangely i cannot find the wlan0 config file in the
> /etc/sysconfig/network-scripts/!!
>
> [root at laptop ~]# iwlist wlan0 scanning
>
> wlan0     Scan completed :
>           Cell 01 - Address: 00:xx:xx:91:xx:xx
>                     ESSID:"thephenomenon"
>                     Protocol:IEEE 802.11g
>                     Mode:Managed
>                     Frequency:2.412 GHz (Channel 1)
>                     Quality:78/100  Signal level:-46 dBm  Noise level:-96
> dBm
>                     Encryption key:on
>                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
>                               18 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 12 Mb/s
>                               24 Mb/s; 48 Mb/s
>                     Extra:bcn_int=100
>                     Extra:atim=0
>                     IE: WPA Version 1
>                         Group Cipher : TKIP
>                         Pairwise Ciphers (2) : TKIP CCMP
>                         Authentication Suites (1) : PSK
>                     IE: IEEE 802.11i/WPA2 Version 1
>                         Group Cipher : TKIP
>                         Pairwise Ciphers (2) : TKIP CCMP
>                         Authentication Suites (1) : PSK
>
> i generated a wpa_passphrase and wpa_supplicant.conf is as follows
>
> [root at laptop ~]# cat /etc/wpa_supplicant/wpa_supplicant.conf
> ctrl_interface=/var/run/wpa_supplicant
> ctrl_interface_group=wheel
>
> network={
>         ssid="thephenomenon"
>         key_mgmt=WPA-PSK
>         psk=88a745bb68f4ff4fae41xxxxxxxxxxxxx5b1a66341ced3cxxxxxx2167b218d8c
> }
>
> now when i do a
> [root at laptop ~]# wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf
> Failed to read or parse configuration '/etc/wpa_supplicant.conf'.
> [root at laptop ~]#
>
> i get the above error. i have a WPA encryption in my router.
>
> infact earlier i used to get a connected status when i tried to connect it
> with wpa_gui once. but later i think i have screwed the config a bit
>
> sorry for the long post... can someone plz guide me from here?
>
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>
>

Try

   yum install wpa_supplicant
   yum install NetworkManager\*
   service NetworkManager start

-- 
      Enjoy global warming while it lasts.


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