I have exactly the same problemn with my Lenovo with the same wireless hardware and ubuntu 13.04 usin additional driver "STA" slows down the whole network disable all is good except very poor performance of the lenovo but all other in the network are happy)))))))))))))))))))))))))
I have exactly the same problemn with my Lenovo with the same wireless hardware and ubuntu 13.04 usin additional driver "STA" slows down the whole network disable all is good except very poor performance of the lenovo but all other in the network are happy)) ))))))) ))))))) ))))))) ))