i have the same problem.
WIFI works after reboot fine.
but if change the location, the WIFI hotspots are still the old and not
available..
Ubuntu 16.04 XPS-13
linux-headers-4.4.0-38-generic
*-network
description: Wireless interface
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:3a:00.0
logical name: wlp58s0
version: 3a
serial: e4:a7:a0:50:f2:58
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=iwlwifi
driverversion=4.4.0-38-generic firmware=16.242414.0 ip=192.168.0.17 latency=0
link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:283 memory:dc200000-dc201fff
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to bcmwl in Ubuntu.
https://bugs.launchpad.net/bugs/1572659
Title:
bcmwl driver does not work with kernel 4.4.0-21 when secure boot
enabled
Status in bcmwl package in Ubuntu:
Confirmed
Bug description:
After updating ubuntu 16.04 to latest kernel 4.4.0-21, bcmwl driver
(package bcmwl-kernel-source) does not load and wifi not work.
sudo modprobe wl
modprobe: ERROR: could not insert 'wl': Required key not available
If I boot with kernel 4.4.0-18 - bcmwl loads normally and wifi works.
If secure boot disabled - bcmwl loads normally with kernel 4.4.0-21
and wifi works.
---
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2015-12-02 (140 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
NonfreeKernelModules: wl
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Tags: xenial
Uname: Linux 4.4.0-18-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-03-03 (47 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
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