Wireless network device not managed in Ubuntu 12.04. Wireless network did not connect properly.
1. sudo nano /etc/NetworkManager/NetworkManager.conf
managed=true --- This should be set to true
\#[keyfile] ----- This line should be commented out
\#unmanaged-devices=mac:4c:bb:58:3d:1b:3e This line should be commented out
Tags: Wireless network device not managed in Ubuntu 12.04, ubuntu, wireless, devicenotmanaged, solution, 12.04