My laptop (Dell Inspiron 17R 5720) came with preinstalled Ubuntu 11.10. I removed it and installed 12.04. Now I can't find driver for wireless. Apparently, in 11.10 there was Broadcom-STA driver. But in 12.04 there is no additional drivers to install. I tried using: sudo m-a a-i broadcom-sta But building fails on 26%. How can I install driver According to lspci i got: Broadcom Corporation Device 4365 (rev 01)