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I have posted in another thread asking how to install driver for TL-WN722N. However, as I am really eager to fix the problem sooner and I noticed that someone said Ubuntu has already installed the driver of TL-WN727N, I have just gone to buy a new TL-WN727N. However I still cannot get this adaptor work. Having checked with "lsusb", I can see the device shown in the terminal: "Bus 002 Device 003: ID 148f:7601 Ralink Technology, Corp." I am using the Ubuntu 14.04.1.

Could you help me to get the adaptor work? Thank you

I plug the adaptor into the laptop and then switch on the laptop. Then run sudo iwconfig

Result:

wlan0     IEEE 802.11abgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off

lo        no wireless extensions.

eth0      no wireless extensions.
Community
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eepty
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  • Plug the device in and reboot. Does NetworkManager automatically detect the device? Run the command sudo iwconfig to find out. Please post the results – mchid Aug 18 '14 at 08:15
  • @mchid The following is the result: 'wlan0 IEEE 802.11abgn ESSID:off/any
    Mode:Managed Access Point: Not-Associated Tx-Power=off
    Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off

    lo no wireless extensions.

    eth0 no wireless extensions.'

     – eepty Aug 18 '14 at 11:09
  • If the USB device doesn't show up as wlan1 or at all you can try this. Plug in the device and then run these commands: first sudo modprobe ath9k next sudo modprobe ath9k_htc and finally echo "148F 7601" | sudo tee /sys/bus/usb/drivers/ath9k_htc/new_id – mchid Aug 18 '14 at 13:20

1 Answers1

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TP Link 727n v1 or v3. Ralink chipsets are rt3070 v1 and rt5370 v3. The driver is rt2800usb.The version # can be found at the end of the FCC ID: ########V3 located on the back of the device. Also see https://wikidevi.com/wiki/Wireless_adapters/Chipset_table for more info. As far as the chart states Mediatek chipsets don't work in permicuous mode or monitor mode.

Harvey_Dent
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