more on "wifi not working on ubuntu, when it did before upgrades"

[Alan White <awhite0006 gmail com>]

On Thursday 02 of December 2010 19:33:42 Alan White wrote:


> > (eth0)' (eth0) as default for routing and DNS.
> > Nov 25 09:29:29 awhite NetworkManager: <info>  Activation (eth0)
> > successful, device activated.
> > Nov 25 09:29:29 awhite NetworkManager: <info>  Activation (eth0) Stage 5
> > of 5 (IP Configure Commit) complete.
> > Nov 25 09:29:29 awhite wpa_supplicant[1060]: Failed to initiate AP scan.
> > Nov 25 09:29:29 awhite connmand[2233]: wlan0 SCANNING
>   

According to the log, you are running both network-manager and connman, which 
could cause wpa_supplicant to fail in scanning APs.
You should run just one of the managers. Follow
https://wiki.ubuntu.com/ConnMan/Installation
to configure your machine properly.

Jirka

===========

Here's the result of following those directions:

awhite awhite:~$ sudo mv /etc/init/network-manager.conf-disabled /etc/init/network-manager.conf
[sudo] password for awhite: 
mv: cannot stat `/etc/init/network-manager.conf-disabled': No such file or directory


awhite awhite:~$ sudo mv /etc/xdg/autostart/nm-applet.desktop.disabled /etc/xdg/autostart/nm-applet.desktop
mv: cannot stat `/etc/xdg/autostart/nm-applet.desktop.disabled': No such file or directory


awhite awhite:~$ sudo apt-get remove indicator-network connman
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Couldn't find package indicator-network


awhite awhite:~$ sudo apt-get remove connman
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
 libgettext-ruby1.8 planner python-psyco gimp-help-en libglade2-ruby1.8
 irb1.8 libgconf2-ruby kivio-data eclipse-rcp xul-ext-greasemonkey
 seamonkey-gnome-support libqt4-ruby1.8 libatk1-ruby1.8 libglib2-ruby
 libglade2-ruby libgnome2-ruby1.8 thunderbird-locale-en-gb
 libkorundum4-ruby1.8 openoffice.org-l10n-common libnss3-dev gimp-help-common
 eclipse-platform-data libboost-date-time1.38.0 ant-optional-gcj
 libtorrent-rasterbar5 install-package libgnomecanvas2-ruby1.8 ant
 libequinox-osgi-java eog libgnome2-ruby libgconf2-ruby1.8 libjline-java
 libnspr4-dev libxerces2-java libglib2-ruby1.8 libcairo-ruby1.8
 libgettext-ruby-util greasemonkey gdebi-kde libgdk-pixbuf2-ruby1.8 rhino
 libgstreamer0.10-ruby1.8 libpoppler-qt2 libart2-ruby1.8 libgtk2-ruby1.8
 openoffice.org-l10n-en-gb libgtk2-ruby openoffice.org-l10n-en-za
 libboost-filesystem1.38.0 miro-data libxmpp4r-ruby1.8 ant-gcj libsmokeqt4-2
 openoffice.org-help-en-us ant-optional libopenssl-ruby1.8
 libreadline-ruby1.8 libsmokekde4-2 libpango1-ruby1.8 libpqxx-2.6.9ldbl
 libboost-system1.38.0 python-libtorrent libboost-python1.38.0 libxmpp4r-ruby
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
 connman connman-gnome
0 upgraded, 0 newly installed, 2 to remove and 28 not upgraded.
After this operation, 942kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 502310 files and directories currently installed.)
Removing connman-gnome ...
Removing connman ...
* Stopping Connection Manager                                           [ OK ] 
Removing any system startup links for /etc/init.d/connman ...
  /etc/rc2.d/S04connman
  /etc/rc3.d/S04connman
  /etc/rc4.d/S04connman
  /etc/rc5.d/S04connman
Processing triggers for desktop-file-utils ...
Processing triggers for hicolor-icon-theme ...
Processing triggers for ureadahead ...
ureadahead will be reprofiled on next reboot
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
awhite awhite:~$ 


And before reboot, "Wired network Disconnected - you are now offline" from nm-applet.

--
Alan White
awhite0006 gmail com
406.853.0077