How to install TP-LINK TL-WN722N on Ubuntu? [closed]

Solution 1:

Without a lot more information, it is impossible to propose a solution. After we have more details, I will edit this answer to add a solution.

Does the driver load automatically, as expected? Check:

lsmod | grep ath

If not, try to load it and see if there are any errors or warnings at the terminal:

sudo modprobe ath9k_htc

If it loads without complaint, check to see if a wireless interface, ideally wlan0, was created:

iwconfig

If no wlan0 is created, see if the message log has any clues:

dmesg | grep -e wlan -e ath9k

Finally, in some cases, the wireless switch for an internal device will prevent a USB wireless from working. Check to see if the switch is stopping the USB:

rfkill list all

I wonder if the firmware is corrupted. I notice:

usb 1-3: ath9k_htc: Transferred FW: htc_9271.fw, size: 11233

However, on my system, the size is different:

-rw-r--r-- 1 root root 51272 Nov 24 10:42 /lib/firmware/htc_9271.fw

Please edit your question to add the result of:

ls -al /lib/firmware/htc_9271.fw

If it is not of the size 51272, let's reinstall the firmware package:

sudo apt-get install --reinstall linux-firmware

Then reboot and check:

dmesg | grep ath9k

With further details, we will proceed.