more on "wifi no longer working under ubuntu"

From: Alan White <awhite0006 gmail com>
To: networkmanager-list gnome org
Subject: more on "wifi no longer working under ubuntu"
Date: Thu, 02 Dec 2010 11:36:02 -0700

Please note that when it comes to NetworkManager I'm a newbie and auser, not a programmer; my goal is to (AGAIN) have WiFi come up whenbooting/logging in, as it used to before an automatic upgrade via Ubuntufrom 9.04 to 9.? (but before 9.10).

This posting is not on the same high technical level as most of thepostings here, but the lack of WiFi under Linux is certainly an issuefor me. WiFi works just fine under Windows Vista when booting that OS onthe same laptop, so the wireless hardware is not an issue.

Left to my own resources I'd back up all my /home files and do a freshinstall of the latest LTS Ubuntu on that partition, and I'll need to dothat SOON, but it surely seems like overkill for what seems (to me) tobe a simple mis-configuration or other simple issue. I'm ALMOST there...I think.


Thanks for any assistance.
Alan

============================

One answer to another question on here was "use nm-cli to list, startand stop connections." Here's what I got:


awhite awhite:/etc/NetworkManager$ nm-cli
nm-cli: command not found
awhite awhite:/etc/NetworkManager$ nmcli
nmcli: command not found
awhite awhite:/etc/NetworkManager$

Suggestions?

Continuing, the answer said "you can connect with VNC to your server tocreate initial connection settings or you could import/set everythinggconftool-2."


Does this apply if my "server" is a wireless router?

I will check "a discussion about that:
http://mail.gnome.org/archives/networkmanager-list/2010-November/msg00082.html";

=========================

nm-applet did not appear in the notification area. I killed the process,which was sleeping, and typed:



awhite awhite:/etc/NetworkManager$ nm-applet&
[1] 5381

awhite awhite:/etc/NetworkManager$ libnotify-Message:GetServerInformation call failed: Too few arguments in reply

libnotify-Message: Error getting spec version

** Message: <info> No keyring secrets found forphillips/802-11-wireless-security; asking user.

** (nm-applet:5381): WARNING **: security_combo_changed: no activesecurity combo box item.


======================

At this point the window popped up to ask me the password for mywireless network. The pulldown was grayed out. Only choice available was"Cancel." So I chose that:




awhite awhite:/etc/NetworkManager$

** (nm-applet:5381): WARNING **: applet-device-wifi.c.1643(get_secrets_dialog_response_cb): canceled

** (nm-applet:5381): WARNING **: _nm_object_get_property: Error getting'State' for /org/freedesktop/NetworkManager/ActiveConnection/3: Method"Get" with signature "ss" on interface "org.freedesktop.DBus.Properties"doesn't exist

** (nm-applet:5381): WARNING **: _nm_object_get_property: Error getting'Default' for /org/freedesktop/NetworkManager/ActiveConnection/3: Method"Get" with signature "ss" on interface "org.freedesktop.DBus.Properties"doesn't exist

** (nm-applet:5381): DEBUG: old state indicates that this was not adisconnect 9** (nm-applet:5381): DEBUG: going for offline with icon:notification-network-wireless-disconnected


========================

nm-applet never did appear in the notification area.

======================

https://help.ubuntu.com/9.10/internet/C/troubleshooting-wireless.html#troubleshooting-wireless-connection:

Check for device recognition:

awhite awhite:/etc/NetworkManager$ sudo lshw -C network
[sudo] password for awhite:
*-network
description: Ethernet interface
product: MCP77 Ethernet
vendor: nVidia Corporation
physical id: a
bus info: pci 0000:00:0a.0
logical name: eth0
version: a2
serial: 00:1f:16:7f:e7:ac
size: 100MB/s
capacity: 100MB/s
width: 32 bits
clock: 66MHz

capabilities: pm msi ht bus_master cap_list ethernet physical mii 10bt10bt-fd 100bt 100bt-fd autonegotiationconfiguration: autonegotiation=on broadcast=yes driver=forcedethdriverversion=0.64 duplex=full ip=192.168.0.71 latency=0 link=yesmaxlatency=20 mingnt=1 multicast=yes port=MII speed=100MB/sresources: irq:26 memory:c0009000-c0009fff ioport:30f8(size=8)memory:c0007c00-c0007cff memory:c0007800-c000780f

*-network
description: Wireless interface
product: AR5001 Wireless Network Adapter
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci 0000:07:00.0
logical name: wlan0
version: 01
serial: 00:24:2c:6e:54:a2
width: 64 bits
clock: 33MHz

capabilities: pm msi pciexpress msix bus_master cap_list ethernetphysical wirelessconfiguration: broadcast=yes driver=ath5k latency=0 multicast=yeswireless=IEEE 802.11bg

resources: irq:23 memory:c2000000-c200ffff
awhite awhite:/etc/NetworkManager$

What should this tell me?

=========================

Check for a connection to the router:

1. Open a Terminal (Applications → Accessories → Terminal) and type thecommand: iwconfig.2. If the ESSID for our router is shown there may be a problem with ACPIsupport. Boot the kernel with the pci=noacpi option.


awhite awhite:/etc/NetworkManager$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11bg Mode:Managed Access Point: Not-Associated
Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off

What should this tell me?

======================

awhite awhite:/etc/NetworkManager$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 9.10
Release: 9.10
Codename: karmic
awhite awhite:/etc/NetworkManager$

What should this tell me?

==========================

awhite awhite:/etc/NetworkManager$ ps auxw | grep -i nm-applet
awhite 5381 0.0 0.5 140764 16100 pts/2 S Nov30 0:00 nm-applet
awhite 8942 0.0 0.0 3044 848 pts/2 R+ 00:56 0:00 grep -i nm-applet

awhite awhite:/etc/NetworkManager$ ** (nm-applet:5381): DEBUG: old stateindicates that this was not a disconnect 1** (nm-applet:5381): DEBUG: old state indicates that this was not adisconnect 2

** (nm-applet:5381): DEBUG: foo_client_state_changed_cb