Wireless Connection Issue 12.04 LTS

Asked by Jason

When first starting Ubuntu the network is not automatically picked up, after selecting the network through system settings it sees it but can not connect, however it appears to be trying to. If the system is suspended and then resumed then the wireless connection is established.

What do?

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Jason
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Warren Hill (warren-hill) said :
#1

Hi,

You haven't gven us much to go on. So I'll start with a few questions.

1. Is this a new install or has it Worked prevously on a previous versin of Ubuntu?

2. is your machine Ubuntu only or Dual boot? If dual boot whats ther OS?

3. Make and model of computer?

4. How are you trying to connect: Wired or Wireless?

Now can you open a terminal by pressing CTRL+ALT+T and enter the following command

sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list; dmesg | grep -i firm; sudo iwlist scan

Next copy the output by selecting Edit>SelectAll and copy it Edit>Copy from the menu.

Select a text editor and save the output as a file. Yu can then use a computer with internet access to paste all the results back here.

This should give us enough infrmation for at least one of us to be able to help further.

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Mark Rijckenberg (markrijckenberg) said :
#2

Hi,

Please first connect your wired network adapter to the wireless router using an ethernet cable (also known as a LAN cable).

In order to gather essential troubleshooting information about your wireless card, please follow this procedure:

Step 1:

If you are using the Gnome interface, open the Terminal console via "Applications->Accessories->Terminal"

If you are using the Unity interface, the easiest way to open the Terminal is to use the 'search' function on the dash. Or you can click on the 'More Apps' button, click on the 'See more results' by the installed section, and find it in that list of applications. A third way, available after you click on the 'More Apps' button, is to go to the search bar, and see that the far right end of it says 'All Applications'. You then click on that, and you'll see the full list. Then you can go to Accessories > Terminal after that.

The methods in Unity are:
Press Control-ALT-T key combination.
Dash > Search for Terminal
Dash > More Apps > 'See More Results' > Terminal
Dash > More Apps > Accessories > Terminal

Step 2: Please copy-paste the following command from https://help.ubuntu.com/community/WirelessTroubleshootingProcedure in Firefox into the Linux Terminal. Do NOT copy-paste from the Email message into the Terminal, as that will only copy PART of the command. The command STARTS with the word sudo and ENDS with the word lsmod. So please copy-paste the ENTIRE command below from Firefox into a Terminal, press <enter>, then enter password when sudo asks for password, then press enter again.

Tip: If you have a wheel mouse or 3 button mouse you do not need to type commands into the Terminal. Highlight the command written on the page. Move your cursor anywhere in the Terminal and press the wheel or middle button. Automatic Copy and paste! No spelling mistakes! No Typos! No other errors!

sudo apt-get update; sudo apt-get install hwinfo grep rfkill; sudo lshw -C network; rfkill list; sudo iwlist scanning; cat /etc/network/interfaces; cat /etc/lsb-release; lspci -nn; lsusb; sudo lshw -short; uname -a; dmesg | egrep 'acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|ireless|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|ound|p54|prism|rtl|rt2|rt3|rt5|rt6|rt7|usb|witch|wl';sudo dmidecode|egrep 'anufact|roduct|erial|elease'; iwconfig; cat /etc/modprobe.d/* | egrep 'acx|at76|ath|b43|bcm|brcm|CX|eth|ipw|irmware|isl|lbtf|orinoco|ndiswrapper|NPE|p54|prism|rtl|rt2|rt3|rt6|rt7|wmi|witch|wl'; cat /var/lib/NetworkManager/NetworkManager.state; sudo hwinfo --netcard ; ps -aux|egrep 'wpa|icd|etwork'; sudo lsmod

Step 3: Please post results (copy/paste terminal output) on this thread. The troubleshooters here need to see the full Terminal output from running the above command.

Step 4: Please also specify the exact model and make of your PC (if known) on this thread

Step 5: Please also clarify if you installed Ubuntu to the harddisk and are running from a harddisk install OR if you are only testing Ubuntu in a LiveCD session.

Regards,

Mark

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Jason (thesoundaurora) said :
#3

It seems to have fixed itself so I'm just going to close this thread, thanks anyway guys.

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Jason (thesoundaurora) said :
#4

Just to answer these questions.

1. Is this a new install or has it Worked prevously on a previous versin of Ubuntu?
New install, has worked on previous versions however.

2. is your machine Ubuntu only or Dual boot? If dual boot whats ther OS?
Dual boot with Windows 7

3. Make and model of computer?
Dell Inspiron Laptop (will come back when I can find more information, currently in class)

4. How are you trying to connect: Wired or Wireless?
Wirless

I won't bother with the commands since it's working now.

It has been automatic since I posted here oddly.

Revision history for this message
Warren Hill (warren-hill) said :
#5

One thing to be aware of with dell laptops is the Disable lan softswitch Fn-F2. This can cause problems.

If you have problems again. go into the bios (F2 at start-up), on wireless tab disable soft switch and force Wireless on.