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I had some issues with WiFi with my Lenovo y580, I could connect my home WiFi but it would disonnect me after few minutes and I wasn't able to reconnect I have Ubuntu 12.04 and I believe my network card is "AR8161 Gigabit Ethernet"

Changes I have been doing before it stopped working at all:

191  lspci -vv | grep Atheros
192  sudo apt-get install build-essential linux-headers-generic linux-headers-`uname -r`
193  wget -O- | tar -xj
194  cd compat-wireless-2012-07-03-pc
195  ./scripts/driver-select alx
196  make
197  sudo make install
198  sudo modprobe alx

It would be great if I could revert this change so ubuntu would use the previous standard driver.
Then I could at least connect to some WiFi and maybe this problem was router's issue and not my network driver one

Thanks for any help

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The device and driver you show are for ehternet not wifi. Please run lspci -nnk | grep -iA2 net lsusb nm-tool sudo iwlist scan iwconfig rfkill list all lsmod post the output at then post the link here. Thanks – Wild Man Mar 10 '14 at 11:02
@WildMan By reinstalling packages listed in following question:… I am now back in state where I aws before -home WiFi works for a few minutes, but then disconnects and not even restarting the router does help then... However I have no connection problems with connecting via mobilephone wifi hotspot, however I have 2GB bandwidth limit on mobile and it is rather limiting – ViRPo Mar 11 '14 at 20:03

Ok, after going 4 hours without being disconnected I can say, that I have solved the issue

The solution is to go to Network -> Edit Connections -> Wireless -> Click on WiFi -> Edit -> IPv6 Settings

There, you have to select Method: Ignore

So it is IPv6 related issue. Somehow.

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