No wireless: Edimax rt73usb

[Dotan Cohen]

On 25/02/2008, Leonard Chatagnier <lenc5570 at sbcglobal.net> wrote:
>
>  --- 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?

I did google the dongle and I see that there are many problems, and
just as many solutions. Everyone seems to need to jump through a
different hoop to make it work. So I thought that I'd ask here instead
of experimenting with 50 different procedures that _may_ work (or
not). This isn't my computer (I install Ubuntu on friends' computers
about once a week) so I did not want to do too much experimentation.

Dotan Cohen

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