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.

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.

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