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TP-LINK TL-WN725N can work out of box in kernel 3.2.0-34-generic under 12.04 amd64. After I update to kernel 3.2.0-40-generic , it does not work out of box in kernel 3.2.0-40-generic under 12.04 amd64. I use ubuntu 12.04 amd64. TP-LINK TL-WN725N chip is RTL8188CUS.

Is here anyone who meet the same problem ? Thanks

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marked as duplicate by mikewhatever, Raja, Luis Alvarado Apr 28 '13 at 15:05

This question was marked as an exact duplicate of an existing question.

Does the duplicate question not answer your question? – Seth Apr 29 '13 at 4:00
I do like that . But every time I pulled out usb wireless card or run 'sudo modprobe -r 8192cu', my system crashed. The 8192cu sometimes works, sometimes not. I think the drivers of RTL8188CUS in kernel and from realtek site are both very poor. The realtek site says the newest kernel that the driver supports is 3.0.8. But now my 12.04 kernel is 3.2.0-40. – waterloo2005 Apr 29 '13 at 7:16

Make a bootable usb stick with 13.04 version, do a live session and see if it works.The 13.04 has 3.8 kernel which supports more hardware devices.

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It still does not work out of box in 13.04 and 12.04.2 . I download driver of RTL8188CUS from realtex site and install it . If I use that driver from realtex site, ever time I pulled out TL-WN725N , system crashed. – waterloo2005 Apr 29 '13 at 2:50

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