Recently I installed Ubuntu 16.04 on my vaio vpccb17fx with Intel Centrino Wireless N1000. Unfortunately my signal strength is very weak, it keeps disconnecting and actually I can't use Wifi! I don't know what to do as I'm new to Linux. I would be very grateful for someone who could help me (and maybe others have the same problem) Thanks.
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WIFI regulatory domain not set
Set the WIFI country code for the Kernels current regulatory domain if it isn't set.
iw reg get
To set it
sudo nano /etc/default/crda
REGDOMAIN=<ISOCODE>
Reboot.
Upstream kernel
Try the latest upstream kernel. I saw WIFI bug-reports that were fixed with a new kernel, so it's worth a try. It also fixed mine. Read more about upstream kernels here.
Download and install the packages that corresponds to your architecture (e.g. AMD64, kernel 4.6-rc7-wily)
linux-headers-4.6.0-040600rc7-generic_4.6.0-040600rc7.201605081830_amd64.deb
linux-headers-4.6.0-040600rc7_4.6.0-040600rc7.201605081830_all.deb
linux-image-4.6.0-040600rc7-generic_4.6.0-040600rc7.201605081830_amd64.deb
sudo dpkg -i *.deb
sudo reboot
Janghou
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Made no difference, :( I think I should dual boot with Windows so that I can use wifi – Hamed.Y May 11 '16 at 17:05
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https://askubuntu.com/questions/762198/16-04-lts-wifi-connection-issues/768268#768268 – jsingh Aug 14 '17 at 14:33