Network UNCLAIMED - Unable to access internet

Question

My Kubuntu was working well until I think a day ago, and suddenly I don't have access to Wi-Fi. I've tried turning on the connection via the Connection editor but the box was grayed out. After looking for solutions via various sites i came up with this answer to

lshw -c network

as following:

*-network UNCLAIMED
description: Network controller
product: AR9285 Wireless Network Adapter (PCI-Express)
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
version: 01
width: 64 bits
clock: 33MHZ
capabilities: bus_master cap_list
configuration: latency=0
resources: memory:f0500000-f050ffff

I understood that this problem caused because i lack a driver, but the thing is, everything was working fine about a day ago.

Solution

Okay after searching some more, and focusing on the driver problem i came up with this:

  echo "options ath9k nohwcrypt=1" | sudo tee  /etc/modprobe.d/ath9k.conf
  sudo modprobe -rfv ath9k
  sudo modprobe -v ath9k

I have no idea what it does, but it worked!

Comments

[ctrl-alt-delor]

I am struggling with the same issue. How did you get the "ath9k" ? I am trying to find out what it would be in my case. Thanks in advance for your help! from @Inês (originally posted in an answer)