I use Debian 8 and tonight I tried to switch between the integrated wifi and an wifi usb key using online tutorial. It worked. I did this just to see if wireless connection was better, but it isn't.

Now I would like to switch back to my integrated wifi... I'm using an Acer Aspire 7715. I used "modprobe mt7601Usta" as last command to install/use the wifi usb key, but how can I switch/reinstall (to) my integrated wifi now ? I tried to find the name of my wifi module, using "sudo lshw -C network". I got "AR928X" as wireless product.

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    Welcome to U&L . The lspci command will give you the required information about the wifi card e,g: lspci -knn | grep Net -A2 . You can edit your question here – GAD3R Dec 27 '17 at 22:33

According to the debian wiki the Qualcomm Atheros AR928X Wireless Network Adapter use the ath9k driver. It is included in the linux kernel.

To unload the driver use:

sudo modprobe -rv ath9k


sudo rmmod ath9k

To load the driver use:

sudo modprobe -v ath9k

To unload the driver of your USB wifi adapter you can use modprobe -rv mt7601Usta (the best command the -v = verbose) or the rmmod mt7601Usta command.

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  • Thank you for your answer. Unfortunately, I got : insmod /lib/modules/3.16.0-4-amd64/kernel/net/wireless/cfg80211.ko modprobe: ERROR: could not insert 'ath9k': Invalid argument after using "sudo modprobe -v ath9k". – Robg Dec 27 '17 at 23:20
  • @Robg Disable the secure boot from your BIOS settings then try sudo modprobe -rv ath9k then sudo modprobe -v ath9k – GAD3R Dec 28 '17 at 11:39

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