If you have tried the packet injection test with aireplay-ng and it dosent work, most likley your card cannot inject packets. You will need to check out the list of supported wifi cards and get one that does inject packets.
Well I purchased it because I saw it on the wiki usb dongle list and its compatible.
But can't managed to make it work
always perform a search.it has been answered 1000 time.
connect USB NIC after properly booting BT.
problem is with injection rate.just make sure to set the packet injection rate to
iwconfig rausb0 rate 1M
aireplay-ng -9 rausb0
I am sure next time you won't be having any trouble.
I DonT UNDErSTaNd ThE TItlE pLZ hELP Me
Are you people using backtrack just for cracking a WEP key?
Of course, if you really wanted to have some fun, go to Wal-Mart late at night and ask the greeter if they could help you find trashbags, roll of carpet, rope, quicklime, clorox and a shovel. See if they give you any strange looks. --Streaker69
Perhaps a little refresher is in order
Use sensible descriptive titles in your posts - not titles such as "Please Help!!" or "Need Assistance" or "what Am I Doing Wrong?" etc