View Full Version : [ubuntu] Wifi Card Not Recognized

September 11th, 2011, 06:32 PM
My wifi card drivers aren't recognized by my Ubuntu Server system. Is there anything specific I can do to configure them? The lspci | grep Network command brings up absolutely nothing.

I've looked at some of the documentation, and it hasn't been able to help me because a few of the commands don't display the information their supposed to. Iwconfig, for example, hasn't helped much either.

Thanks in advance to those who can help.

Wild Man
September 11th, 2011, 07:01 PM
Hi, run these commands please and post the results here:

cat /etc/lsb-release; uname -a

sudo lshw -C network



rfkill list all

by clicking on new reply and click # and paste the information between the brackets.
Thank you

September 11th, 2011, 08:03 PM
DISTRIB_ID = ubuntu

Bus 001 Device 004 ID 050d:905b Belkin Components F5D9050 Wireless G+ MIMO Network Adapter v3000 [Ralink RT2573]

lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEE 802.11bg ESSID:off/any
Mode:Managed Access Point:Not-Assocated tx-power=0 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on

0:phy0: Wireless LAN
Soft blocked:no
Hard blocked:no

Module Size Used by
sha25_generic 20911 2
cryptd 19801 0
aes_i586 16956 8
aes_generic 38023 1 aes_i586
dm_crypt 22463 1
arc4 12473 3
rt73usb 26854 0
crc_itu_t 12627 1 rt73usb
rt20x00usb 19693 1 rt73usb
rt2x00lib 39075 2 rt73usb, rt2x00usb
snd_wavefront 34696 0
snd_intel18x0 33213 0
mac80211 257001 2 rt2x00usbm rt2x00lib
snd_cs4236 29291 0
snd_wss_lib 30006 2 snd_wavefront, snd_cs4236
ac97_bus 12642 1 sndP_ac97_codec
snd_op13_lib 18760 2 snd_wavefront,snd_c4236
snd_hwdep 13274 2 sdn_wavefront, snd_op13_lib
ppdev 12849 0
snd_pcm 80244 4 snd_intel18x0, snd_cs4236, snd_wss_lib, snd_ac97_codec
ac97_bus 12642 1 snd_ac97_codec

I have to copy all of this by hand, so let me know if you need any more info. Thanks much for your help - I really appreciate it. Also, if there's a way you can post results to a text file via command line and save it to a usb flash drive, please let me know.

September 11th, 2011, 09:11 PM
Try to shut off the power management:

sudo iwconfig wlan0 power off
sudo rfkill unblock all
sudo service network-manager restart

tx-power=0 dBm
shows that there is some button/switch/etc. The card is "off".

You may reset your BIOS to manufacturer default settings and/or check if wireless can be enabled there.

Wild Man
September 11th, 2011, 09:11 PM
Hi, did you manually edit your driver for this card?

Please post the results of these commands here:

sudo lshw -C network


sudo iwlist scan

dmesg | egrep 'rt7|firm'
Thank you