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I have installed Linux Mint-17 on my laptop. However, i am unable to connect to any wireless network. A red dot is flashed under the network icon on the bottom-right corner(near clock).

I referred the link:- Connecting Linux Mint to WiFi network which suggested to execute:-

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

So, i connected by cellphone through USB-tethering and successfully executed this command. However, the red dot still persists and i am unable to connect to wireless network.

The laptop has a realtek8723BE pci network adapter.

When i execute iwconfig, the output is:-

lo       no wireless extensions.

eth0     no wireless extensions.

How should i connect to wireless network ??

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    Please open terminal and enter wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info This is a diagnostic tool and it will create a file named wireless-info.txt. Please copy the contents of this file and paste at paste.ubuntu.com and post the URL. Is this a newer HP laptop? – Jeremy31 Mar 16 '16 at 12:01
  • Nope, this is Lenovo laptop. I will try your solution and get back... – Abhishek Mar 17 '16 at 3:54
  • Meanwhile, i have connected Intex wifi dongle to connect to my Access Point and start internet. – Abhishek Mar 17 '16 at 3:55
  • paste.ubuntu.com/15406059 – Abhishek Mar 17 '16 at 4:10
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You will need to install compilation tools:

sudo apt-get install linux-headers-generic build-essential git 

Next, clone the tree containing the Realtek driver code:

 git clone http://github.com/lwfinger/rtl8723be 

Finally, compile the code:

cd rtl8723be
make clean
sudo make install
sudo modprobe rtl8723be 

Reboot

Solution 2 : Open the /etc/modprobe.d/rtl8723be.conf file in a text editor, with sudo or root permissions. Then, add the following text:

 options rtl8723be fwlps=N ips=N 

Now, for these changes to take effect, reboot.

  • git clone http://github.com/lwfinger/rtl8723be results in only a readme file in rtl8723be directory – Jeremy31 Mar 25 '16 at 13:16
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We can try Larry Fingers driver for the rtl8723be

sudo apt-get install git linux-headers-generic build-essential dkms
git clone https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms build rtlwifi-new/0.6
sudo dkms install rtlwifi-new/0.6

Reboot

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