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I installed Ubuntu 14.04 alongside Windows 10 but the wifi hasn't worked once since installation. However, it works fine in Windows.

I made sure that on Windows the wifi is turned on. And I've already tried this solution Wifi problems with rtl8723be in Ubuntu 14.04.

When I go to System Settings->Network and try to turn the Wireless ON it immediately turns OFF and doesn't show any wifi networks.

The wireless info is here: http://paste.ubuntu.com/13347247/

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glara
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2 Answers2

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You have both of the helper modules loaded: hp-wmi and acer-wmi. I think you need one but not both. Let's see if your wireless switch properly responds if you remove the most likely candidate:

sudo -i
echo "blacklist acer-wmi"  >>  /etc/modprobe.d/blacklist.conf
modprobe -r acer-wmi
modprobe hp-wmi
exit

If this is effective, remove the previously ineffective blacklist:

gksudo gedit /etc/modprobe.d/blacklist.conf

Remove the incorrect line: blacklist hp-wmi, save and close the text editor.

chili555
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The wireless info shows that in rfkill output you have 

1: acer-wireless: Wireless LAN
    Soft blocked: yes
    Hard blocked: no

Therefore run sudo rfkill unblock all

Sergiy Kolodyazhnyy
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