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chili55514.6k 2 14 38

3I purchased a USB wireless adapter TP-LINK TL-WN7200ND, which uses a Ralink RT3070 chipset.Right now I'm using Ubuntu 12.10.

It detects the adapter as Ralink, but when I try to use it, it doesn't let me and forces me to use thewireless integrated on the laptop, so I think it's because of the drivers.

wireless drivers input-devices ralink

share improve this question edited Mar 3 '13 at 18:34 asked Mar 3 '13 at 17:24

1 Please, tell us if the answer has been useful for you. And feel free to edit it with any suggestion that you thinknecessary. Also, you can mark it as accepted so it remains as answered. Lucio Mar 4 '13 at 2:17

2In order for Network Manager to use the USB device, find out what the driver is for your internal andblacklist it. Learn the driver with:

sudo lshw -C network

For example,on my machine, I see:

*-network description: Wireless interface product: Centrino Advanced-N 6200 vendor: Intel Corporation driver=iwlwifi driverversion=3.5.0-25-generic firmware=9.221.4.1

So, if I wanted to disable my internal, I'd blacklist iwlwifi.

sudo suecho "blacklist iwlwifi" >> /etc/modprobe.d/blacklist.confmodprobe -r iwlwifiexit

Then the USB, using the built-in driver rt2800usb, should work fine.

Of course, if the internal is not working as expected, we could troubleshoot it.

share improve this answer answered Mar 4 '13 at 13:21

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community wiki2 revsLucio

2For Ubuntu 10.04 and below

1. You have to know the ID of your device, so enter the command lsusb in a terminal. It will showyou a list like this, remember the ID number (e.g. 083a:a701 ). You can unplug/plug until see thecorrect one.

2. Unplug the adapter!

3. In the terminal enter the following command:

echo 'install rt2870sta modprobe --ignore-install rt2870sta ; /bin/echo "XXXX YYYY" > /sys/bus/usb/drivers/rt2870/new_id' | sudo tee /etc/modprobe.d/rt2870sta.conf

Replace XXXX with the values before the colon : and YYYY with the values after it, respectively.And don't modify anything there, because the rt2870sta chip will work for you.

4. Enter the followings commands:

sudo modprobe -rf rt2870stasudo modprobe rt2870sta dmesg | egrep 'rt28|usb|Phy'

5. Connect the adapter and done

Now it should be working, if you enter iwconfig you should see something like this

If you have problems restarting the system, edit the file /etc/rc.local with sudo gedit /etc/rc.local and add modprobe rt2870sta before the last line ( exit 0 ).

NOTE: this guide was published by JJ in this thread. As I didn't test, I do not give any guarantee of itsoperation.

share improve this answer edited Mar 5 '13 at 0:15

1 The driver rt2870sta is not present in 12.10. This technique will not work. chili555 Mar 4 '13 at 13:14

@chili555 Do you know if this could work in newer versions than Ubuntu 10.04? Lucio Mar 5 '13 at 0:16

1 I believe it will work up to 11.10. If this command returns output, then yes: modinfo rt2870sta chili555 Mar 5'13 at 0:18

@chili555 Oh, could you add the information that you know into the answer? It is a CW post :-) Lucio Mar5 '13 at 0:22

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