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I am having some problems after upgrading to 12.04LTS.

Wireless now won't connect, Wireless adapter shows as unclaimed.

sudo lshw -C network shows

    liz@liz-N220:~$ sudo lshw -C network
[sudo] password for liz: 
  *-network UNCLAIMED     
       description: Network controller
       product: RTL8192E/RTL8192SE Wireless LAN Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       version: 01
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: ioport:2000(size=256) memory:f0100000-f0103fff

I have performed sudo apt-get dist upgrade and have updated drivers through Ubuntu but all to no avail.


Here is the output of dpkg -S rtl* | grep /lib/modules/$(uname -r)/kernel/drivers/net/ as requested in the comments:

linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtl818x
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192se/rtl8192se.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtl818x/rtl8180
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtl818x/rtl8187
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/usb/rtl8150.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192cu
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192de
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtl818x/rtl8187/rtl8187.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192se
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192cu/rtl8192cu.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtl818x/rtl8180/rtl8180.ko
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c
linux-image-3.2.0-41-generic: /lib/modules/3.2.0-41-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192de/rtl8192de.ko

after entering still shows unclaimed

$ sudo lshw -C network
  *-network UNCLAIMED     
       description: Network controller
       product: RTL8192E/RTL8192SE Wireless LAN Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       version: 01
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: ioport:2000(size=256) memory:f0100000-f0103fff
  *-network
       description: Ethernet interface
       product: 88E8040 PCI-E Fast Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth0
       version: 00
       serial: 00:24:54:43:8b:92
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full firmware=N/A ip=192.168.1.88 latency=0 link=no multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:45 memory:f0200000-f0203fff ioport:3000(size=256)
share|improve this question
    
any help much apreciated –  user157978 May 12 '13 at 10:47

1 Answer 1

The below answer is copied from my answer here. However, the person still has not marked it as the correct answer.

Okay, we'll have to manually download the driver for your wireless card and install it.

Step 1

Download this, and save it to your Downloads folder

Step 2

Open up a terminal. To do so, hit Ctrl+Alt+T. Type in the following commands and hit enter, one by one.

cd ~/Downloads
unzip rtl*
cd rtl*

Step 3

Enter the following:

sudo make

If the output from this command gives you lines that mention an error, like this:

make[1]: ***[_module_/home/alaa/Downloads/rtl_92ce_92se_92de_8723ae_linux_mac80211_0006.0514.2012] Error 2 
make[1]: Leaving directory/usr/src/linux-headers-3.8.0-19-generic'
make: * [all] Error 2

...then stop here, and let us know. But if it does not give you lines that contain the word "error", type the following command:

sudo make install

Step 4

Once that is done, enter the following command:

sudo modprobe rtl8192se

You should not get any output here (if you do, just ignore it). Check if your wireless is working. If it isn't, reboot your computer.

share|improve this answer
    
have done all this and no joy im afraid –  user157978 May 12 '13 at 12:08
    
The newer version of the file is recommended. Here is a link from my Dropbox. dl.dropboxusercontent.com/u/58267392/… Please try again. –  chili555 May 12 '13 at 12:28
    
Hi my son, who knows what he is doing hsa been dealing with this but has now gone. i am a complete novice. can you please guide me through what i have to do with this info. thanks –  user157978 May 12 '13 at 12:54
    
Follow the steps in my answer. Also, the file mentioned in my answer is a modified one that should work. Or, you can use the file mentioned in the comment by @chili555. –  Alaa Ali May 12 '13 at 14:05
    
HI have tried again, no error messages but still does not find any wireless networks –  user157978 May 12 '13 at 16:53

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