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My notebook's internal WIFI adapter stopped working (maybe because of overheating?). I bought a USB WIFI (TP-LINK 150Mbs Wireless N USB Adapter TL-WN723N). Now internet is fine in Windows 7.

But not in Ubuntu I think it's still trying to use the internal adapter. (Atheros)

Can I disable the internal adapter and get Ubuntu to use the USB WIFI?

It's a bit of a pain to fix 'cos I have to reboot between Windows with internet and Ubuntu with no internet...

  • Please add the Version of Ubuntu you are using. – mondjunge Oct 15 '13 at 12:16
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Please run this terminal command:

sudo lshw -C network

Find your internal (Atheros??) device and find its driver. It may be ath9k or ath5k or similar. Now blacklist it:

sudo -i
echo "blacklist ath9k" >> /etc/modprobe.d/blacklist.conf
modprobe -r ath9k
exit

Of course, substitute the driver you found, if not ath9k. If in doubt, stop and ask here.

| improve this answer | |
  • the internal driver came back, so I followed your instructions, now it's working perfectly thanks. – leepubuntu Oct 17 '13 at 16:03

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