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I am using a HP 2000-2302TU laptop.

In the System Settings > Network, there is no option for wireless. Only wired and Network Proxy are available. I also searched in "Additional Drivers" and it doesn't show any drivers to install.

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Sorry for adding my solution as a comment, I still can't use the answer since I have low reputation. Anyway thanks all for your answers. I solved my problems using this article rricketts.com/… –  chathura2020 May 12 '13 at 10:36
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4 Answers

Try to install jockey it might help or visit this site for additional drivers Wireless Linux

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In the web site there is a huge list of drivers. How can I select the driver I want?? My Laptop spec says 802.11b/g/n . –  chathura2020 May 12 '13 at 8:06
    
See this for detecting your device and this for detecting your device firmware –  Abo Jihad Bazoka May 12 '13 at 8:12
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If nothing works there is a program ndisgtk in the software center. it claims you can install windows drivers to Ubuntu with it. I never needed to try it though.

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Not knowing the history of your computer, I'd suggest you check in your bios config and make sure your wifi is enabled, if the computer was a recent acquisition or previously hardwired, it's possible wifi isn't enabled, which would make it invisible to Ubuntu.

Also, if your laptop is less than a year old, it might need 13.04, I recently did an install for a friend on an HP G6 2225nr that was too new (6 months old) for older install image versions to find the wifi drivers or proper display drivers for, I tried with Ubuntu 12.04 and Mint 14.1 without success, I wound up installing 13.04 and it works perfectly

Just a shot based on the information provided and given that I can't find a specific date-range of manufacture for your computer. I hope it helps... I've been using Ubuntu for about 4 years but I've not had too many issues with machines I've installed on, besides some unanswered questions of my own... (I'm not a guru)

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I believe that HP 2000 has a broadcom wireless adapter. Check in BIOS or online, if so there is a glitch that maybe giving you issues. I have successfully install 12.04 on HP 2000 without issue but here is what you may have to do.

First - plug into WIRED internet (you will need this in a moment).

Second, check if 12.04 has blacklisted Broadcom Adapter

cat /etc/modprobe.d/* | egrep 'bcm'

if it finds: blacklist bcm43xx – then you need to REM this line in blacklist.conf file

cd /etc/modprobe.d/

sudo gedit blacklist.conf

put # before line blacklist bcm43xx, then SAVE and CLOSE blacklist.conf

Third - install the better Broadcom Wireless Adapter drivers

sudo apt-get install b43-fwcutter firmware-b43-installer

After it intalls disconnect your wired connection and restart your computer. You will now see both WIRED and WIRELESS networks under networking icon in top tray.

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