The problem is, that the proprietary drivers, that worked with 14.04, no longer work for Ubuntu 16.04. I did not upgrade, I did a clean installation.sudo lshw -C network shows that my WLAN card is UNCLAIMED, even though I'm using proprietary drivers, which solved the issue back in 14.04. I did a clean install of Ubuntu 16.04, I did not upgrade. I'm new to Ubuntu, and Linux, I have been using Windows all my life, so bare with me. It would be really helpful if I could finally stop using my phone as a wireless tether. Also I used a script that was mentioned in one post to help with the answer. Cheers
########## wireless info START ##########
Report from: 04 May 2016 19:49 CEST +0200
Booted last: 04 May 2016 00:00 CEST +0200
Script from: 27 Sep 2015 00:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
##### kernel ############################
Linux 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
02:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12)
Subsystem: Acer Incorporated [ALI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1025:0864]
Kernel driver in use: r8169
03:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Lite-On Communications Inc BCM43142 802.11b/g/n [11ad:6645]
Kernel modules: bcma, wl
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 06cb:2970 Synaptics, Inc. touchpad
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 04f2:b469 Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 0502:3827 Acer, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 004: ID 04ca:2009 Lite-On Technology Corp.
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
##### lsmod #############################
acer_wmi 20480 0
sparse_keymap 16384 1 acer_wmi
cfg80211 565248 0
wmi 20480 1 acer_wmi
video 40960 1 acer_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
enp2s0f1 Link encap:Ethernet HWaddr
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
enxe29ea79c4d96 Link encap:Ethernet HWaddr
inet addr:192.168.42.253 Bcast:192.168.42.255 Mask:255.255.255.0
inet6 addr: fe80::e203:6a7d:868a:748c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1551 errors:0 dropped:0 overruns:0 frame:0
TX packets:1593 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:918949 (918.9 KB) TX bytes:273825 (273.8 KB)
##### iwconfig ##########################
enxe29ea79c4d96 no wireless extensions.
enp2s0f1 no wireless extensions.
lo no wireless extensions.
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.42.129 0.0.0.0 UG 100 0 0 enxe29ea79c4d96
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 enxe29ea79c4d96
192.168.42.0 0.0.0.0 255.255.255.0 U 100 0 0 enxe29ea79c4d96
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 778 1 0 19:45 ? 00:00:00 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: enxe29ea79c4d96
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: MediaTek
GENERAL.PRODUCT: T02
GENERAL.DRIVER: rndis_host
GENERAL.DRIVER-VERSION: 22-Aug-2005
GENERAL.FIRMWARE-VERSION: RNDIS device
GENERAL.HWADDR:
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.REASON: 0 (No reason given)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:12.2/usb1/1-2/1-2:1.0/net/enxe29ea79c4d96
GENERAL.IP-IFACE: enxe29ea79c4d96
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: Wired connection 1
GENERAL.CON-UUID: 5dd869a6-e315-4289-9761-2d898b466ea6
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/0
GENERAL.METERED: yes (guessed)
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: on
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 5dd869a6-e315-4289-9761-2d898b466ea6 | Wired connection 1
IP4.ADDRESS[1]: 192.168.42.253/24
IP4.GATEWAY: 192.168.42.129
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]: 192.168.42.129
DHCP4.OPTION[1]: requested_subnet_mask = 1
DHCP4.OPTION[2]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[3]: subnet_mask = 255.255.255.0
DHCP4.OPTION[4]: domain_name_servers = 192.168.42.129
DHCP4.OPTION[5]: ip_address = 192.168.42.253
DHCP4.OPTION[6]: requested_static_routes = 1
DHCP4.OPTION[7]: dhcp_server_identifier = 192.168.42.129
DHCP4.OPTION[8]: requested_time_offset = 1
DHCP4.OPTION[9]: broadcast_address = 192.168.42.255
DHCP4.OPTION[10]: requested_interface_mtu = 1
DHCP4.OPTION[11]: dhcp_rebinding_time = 3150
DHCP4.OPTION[12]: requested_domain_name_servers = 1
DHCP4.OPTION[13]: dhcp_message_type = 5
DHCP4.OPTION[14]: requested_broadcast_address = 1
DHCP4.OPTION[15]: routers = 192.168.42.129
DHCP4.OPTION[16]: dhcp_renewal_time = 1800
DHCP4.OPTION[17]: requested_domain_name = 1
DHCP4.OPTION[18]: requested_routers = 1
DHCP4.OPTION[19]: expiry = 1462387551
DHCP4.OPTION[20]: requested_wpad = 1
DHCP4.OPTION[21]: host_name = Technomancer
DHCP4.OPTION[22]: requested_netbios_scope = 1
DHCP4.OPTION[23]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[24]: requested_netbios_name_servers = 1
DHCP4.OPTION[25]: network_number = 192.168.42.0
DHCP4.OPTION[26]: requested_domain_search = 1
DHCP4.OPTION[27]: vendor_encapsulated_options = ANDROID_METERED
DHCP4.OPTION[28]: next_server = 192.168.42.129
DHCP4.OPTION[29]: requested_host_name = 1
DHCP4.OPTION[30]: dhcp_lease_time = 3600
DHCP4.OPTION[31]: requested_ntp_servers = 1
IP6.ADDRESS[1]: fe80::e203:6a7d:868a:748c/64
IP6.GATEWAY:
GENERAL.DEVICE: enp2s0f1
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
GENERAL.DRIVER: r8169
GENERAL.DRIVER-VERSION: 2.3LK-NAPI
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR:
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:03.1/0000:02:00.1/net/enp2s0f1
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
##### iw reg get ########################
Region: Europe/Belgrade (based on set time zone)
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
enxe29ea79c4d96 no frequency information.
enp2s0f1 no frequency information.
lo no frequency information.
##### iwlist scan #######################
enxe29ea79c4d96 Interface doesn't support scanning.
enp2s0f1 Interface doesn't support scanning.
lo Interface doesn't support scanning.
##### module infos ######################
[cfg80211]
filename: /lib/modules/4.4.0-21-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 00D8DA6D3B739DDD31FFF50
depends:
intree: Y
vermagic: 4.4.0-21-generic SMP mod_unload modversions
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
grep: /etc/udev/rules.d/*net*.rules: No such file or directory
##### dmesg #############################
[ 14.718416] rndis_host 1-2:1.0 enxe29ea79c4d96: renamed from usb0
[ 30.518187] IPv6: ADDRCONF(NETDEV_UP): enxe29ea79c4d96: link is not ready
[ 30.526438] IPv6: ADDRCONF(NETDEV_UP): enp2s0f1: link is not ready
[ 30.605747] r8169 0000:02:00.1 enp2s0f1: link down
[ 30.605842] IPv6: ADDRCONF(NETDEV_UP): enp2s0f1: link is not ready
[ 161.825895] bluetooth hci0: Direct firmware load for brcm/BCM.hcd failed with error -2
[ 161.825908] Bluetooth: hci0: BCM: Patch brcm/BCM.hcd not found
########## wireless info END ############
I found the answer on this post.
1) Remove bcmwl-kernel-source
sudo apt-get purge bcmwl-kernel-source
2) Re-install bcmwl-kernel-source
sudo apt-get updatesudo apt-get install bcmwl-kernel-source
It will ask you for a password, if secure boot isn't turned off already.
After the reboot, it will ask you for a character from the password you entered previously, so you can turn off secure boot. Ubuntu will boot up, and voila.
And yes, a part of the problem was secure boot, like the previous answer stated. But the previous answer didn't work towards disabling secure boot.
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