can't connect to wifi "device not ready"

[minesheep]

Installing very old kernel didn't help. When I installed 3.16 kernel it worked few days and the then totally refused to boot with both kernels. Fortunately I had backed up which I almost never do. Now when I use

Code:

uname -r

command i get 4.4.0-165-generic. Maybe I make another backup just in case as it is a 60gb hdd it isn't a pain to clone it. Then i can install old kernel again because it worked just fine for few days. Also the hardware is very old thats why I tried old kernel. Rebooting always fixes it so I think it is a software issue