Ubuntu – How to resolve wireless disconnect problem in Atheros ath9k


I have a non stopped problem in my Acer Aspire 5733 model using Atheros ath9k driver. WiFi is working when router is in nearby location, there is nothing updates by Acer for Linux. I also using rfkill list all command to check switches, it shows:

Soft blocked: no
Hard blocked: no

I searched everywhere on Ubuntu forum but didn't find any result for Aspire 5733, also I couldn't found any firmware for Atheros like Broadcom. This is a big disadvantage of Acer with Ubuntu.
Also, I do some stuff to resolve this problem is to create a file named ath9k.conf:


with the contents:

options ath9k nohwcrypt=1

Please suggest me optimal solution for this problem.

Best Answer

Beside creating a file named /etc/modprobe.d/ath9k.conf with the contents options ath9k nohwcrypt=1, I also had to disable acer_wmi kernel module:

sudo nano /etc/modprobe.d/blacklist.conf

and add this line:

blacklist acer-wmi

Then reboot. This fixed WiFi problems for me.

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