wireless - Updated to kernel 4.8.4-wifi no longer connects - Ask Ubuntu


i'm very new linux. downloaded , installed new kernel, 4.8.4, , wifi shows "enable networking" doesn't connect anything. i'm not sure

installing unsupported kernel not idea (except need specific fix implemented there).

now, wifi working again, should remove new kernel. open terminal , type:

sudo apt-get autoremove linux-image-4.8.4... #(press <kbd>tab</kbd> autocomplete)

sudo apt-get autoremove linux-headers-4.8.4... #(press <kbd>tab</kbd> again)

and last very important

sudo update-grub

now reboot, old kernel (if haven't removed meanwhile, in case, need download , install old kernel manually.)

edit

how install older kernel: download these files:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.14-xenial/linux-headers-4.4.14-040414_4.4.14-040414.201606241434_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.14-xenial/linux-headers-4.4.14-040414-generic_4.4.14-040414.201606241434_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.14-xenial/linux-image-4.4.14-040414-generic_4.4.14-040414.201606241434_amd64.deb

and install them in order: headers - all, headers, image


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