SOLVED: Turned out to be problem with secure boot, refer to solution here "Why do I get "Required key not available" when install 3rd party kernel modules or after a kernel upgrade?"
I just got my Dell Inspiration 15 and it had ubuntu installed on it by default, I updated it by running the following:
sudo apt-get update && sudo apt-get upgrade
sudo apt-get dist-upgrade
It ran fine, finished updating over Wifi and asked me to restart, after the reset, My wifi is not working and not even showing up in ifconfig or anywhere.
The output of :
lspci -nn | grep 280
lsusb
rfkill list all
batee5a@Bat335a:~$ lspci -nn | grep 0280
02:00.0 Network controller [0280]: Intel Corporation Wireless 3160 [8086:08b3] (rev 83)
batee5a@Bat335a:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:07dc Intel Corp.
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 002: ID 1bcf:2b90 Sunplus Innovation Technology Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
batee5a@Bat335a:~$ rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
I've tried solutions in other threads and non worked thats why I'm posting this here as a new thread, Any help please?
EDIT: Further Results of codes.
batee5a@Bat335a:~$ sudo modprobe iwlwifi
modprobe: ERROR: could not insert 'iwlwifi': Required key not available
batee5a@Bat335a:~$ dmesg | grep iwl
batee5a@Bat335a:~$
sudo modprobe iwlwifiand also:dmesg | grep iwl– chili555 Nov 04 '16 at 16:09dkms status; uname -acommand TO YOUR QUESTION. – Pilot6 Nov 04 '16 at 17:46