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Old 02-12-2014, 10:08 PM   #1
jnojr
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Wireless network disappeared


Dell Inspiron 15" laptop I installed Ubuntu 12.04.2 (because that fit on a CD, part of me hates using up a whole DVD over a couple of MB!) Everything worked. I used the software update button, it installed a bunch of stuff, and everything worked. I was trying to get my CAC working and installed the drivers for the IOGear GSR202 smart card reader and cackey. That wasn't working, and a couple of people thought coolkey worked better so I went to install that. At some point, I did an apt-get update / apt-get upgrade. After rebooting, my Wi-Fi network is gone, and the icon is gone from the bar at the top.

I've Googled. Lots of suggestions talk abouy uninstalling / reinstalling stuff. Others wind up referring to network-manager-gnome things. That isn't installed, and so isn't how this worked in the first place. I can't find any other control panels that have anything to do with networking. 'ifconfig wlan0 up' doesn't result in anything. When I open System Settings, Network, there's a message that says "The system network services are not compatible with this version". Huh? A few references to that being an issue from over a year ago.

So... how do I go about getting my wireless working again?

Last edited by jnojr; 02-14-2014 at 08:32 PM.
 
Old 02-12-2014, 11:17 PM   #2
hilyard
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Is your wireless card a Broadcom?
output
PHP Code:
lspci 
and see if so, down towards the end.
More hardware info helps.
 
Old 02-13-2014, 11:14 AM   #3
jnojr
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I'll check when I get home. But this isn't a hardware issue… the wireless worked just fine before the update. This is almost certainly going to be a software issue. How would I go about finding out what driver is being used? Or if it's a kernel issue?
 
Old 02-13-2014, 11:44 AM   #4
dolphin_oracle
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you mention network-manager-gnome not being installed. If I recall correctly, it should be, as its the default network-manager for ubuntu.
 
Old 02-13-2014, 10:15 PM   #5
jnojr
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Quote:
Originally Posted by hilyard View Post
Is your wireless card a Broadcom?
output
PHP Code:
lspci 
and see if so, down towards the end.
More hardware info helps.
lspci identifies my wireless card as a Qualcomm Atheros AR9285
 
Old 02-13-2014, 10:21 PM   #6
jnojr
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Quote:
Originally Posted by dolphin_oracle View Post
you mention network-manager-gnome not being installed. If I recall correctly, it should be, as its the default network-manager for ubuntu.
dpkg --get-selections shows network-manager-gnome as "deinstall" (I don't know if that means it's installed and can be deinstalled, or if it means it is not installed). dpkg --listfile network-manager-gnome shows /etc/xdg/autostart/nm-applet.desktop

I thought the Ubuntu wm was Unity, not Gnome? Can I find out if a package was installed but removed? This did work before. I know, famous last words...
 
Old 02-14-2014, 06:16 AM   #7
dolphin_oracle
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look in the sofware center and search for network-manager-gnome. it should show as installed if its present.

ubunutu uses a lot of gnome tools with unity, including the file manager, gedit, the terminal, and a bunch of other stuff. Once upon a time unity was based on gnome (3?)
 
Old 02-14-2014, 08:32 PM   #8
jnojr
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Thanks, all.

Turns out that something had uninstalled network-manager, AND somehow the wifi got turned off. Once I dug out an Ethernet cable, I reinstalled network-manager, could then run nm-tool, and got to rfkill showing it hard disabled. Weird!
 
  


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