No wireless: Edimax rt73usb

[Leonard Chatagnier]

--- Dotan Cohen <dotancohen at gmail.com> wrote:

> In a new Ubuntu install, we cannot get wireless
> working. Ifconfig
> shows eth0 (wired) and lo, but no eth1. The wireless
> hardware is an
> Edimax rt73usb USB dongle. I see that it is detected
> in kern.log. This
> is the last page of the log:
> 
>snio
> Feb 24 23:53:57 garry-desktop kernel: [   17.780000]
> ieee80211_init:
> failed to initialize WME (err=-17)
> Feb 24 23:53:57 garry-desktop kernel: [   17.808000]
> iwlwifi_rc80211_simple: Unknown symbol
> iwlwifi_ieee80211_rate_control_unregister
> Feb 24 23:53:57 garry-desktop kernel: [   17.808000]
> iwlwifi_rc80211_simple: Unknown symbol
> iwlwifi_sta_info_put
> Feb 24 23:53:57 garry-desktop kernel: [   17.808000]
> iwlwifi_rc80211_simple: Unknown symbol
> iwlwifi_sta_info_get
> Feb 24 23:53:57 garry-desktop kernel: [   17.808000]
> iwlwifi_rc80211_simple: Unknown symbol
> iwlwifi_ieee80211_rate_control_register
> Feb 24 23:53:57 garry-desktop kernel: [   17.808000]
> wmaster0:
> Selected rate control algorithm 'simple'
> Feb 24 23:53:57 garry-desktop kernel: [   17.892000]
> usbcore:
> registered new interface driver rt2500usb
> Feb 24 23:53:57 garry-desktop kernel: [   17.908000]
> usbcore:
> registered new interface driver rt73usb
> Feb 24 23:53:57 garry-desktop kernel: [   18.112000]
snip
> r8169: eth0: link up
> Feb 24 23:53:58 garry-desktop kernel: [   21.028000]
> Failure
> registering capabilities with primary security
> module.
> Feb 24 23:53:58 garry-desktop kernel: [   21.244000]
> phy0 ->
> rt2500usb_enable_radio: Error - Register
> initialization failed.
> snip
> lo: Disabled
> Privacy Extensions
> Feb 24 23:54:18 garry-desktop kernel: [   41.048000]
> eth0: no IPv6
> routers present
> 
>
You have similiar error messages that I had on a
LinlSYS WPM54G pci wifi card. My soln was a
complicated fix envolving determining the correct rt
module vs. pci version, adding it to the /etc/modules,
blacklisting mac80211, shutting down, removing the
card, rebooting and shutting down again, then
reinserting the card and reabooting before it would
work and maybe having to issue, sudo ifdown wlan0
followed by sudo ifup wlan0 before it would connect.
Hope you don't have that trouble but you may want to
google on your card and it there are issues in its
setup you should find a lot to ponder over.
You likely, almost assuredly, know more about
networking than I, but I never was able to setup a
wifi connection with ethx, or with lo, only with
wlan0.
Your dmesg output may show more as to the cause of the
failure, mine did. I don't see anything about setting
up the usb "LINK" which usually tells you something
about the failure. Maybe that only shows up in dmesg.
If you have a special setup procedure for the device
or special module you should find all you need googing
over it. May want to ID the chipset too.  Good luck or
maybe someone who has used it has the answers. Did you
google to see if its supported?
HTH, 

Leonard Chatagnier
lenc5570 at sbcglobal.net