I updated the kernel in the last day or two. I rebooted today and there is no wireless connection option.
Ethernet is working correctly.
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garrett@garrett-Inspiron-3543 ~ $ inxi -Fxz
System: Host: garrett-Inspiron-3543 Kernel: 4.15.0-24-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: Cinnamon 3.6.7 (Gtk 3.18.9-1ubuntu3.3) Distro: Linux Mint 18.3 Sylvia
Machine: System: Dell (portable) product: Inspiron 3543 v: A01
Mobo: Dell model: 02YXPJ v: A00 Bios: Dell v: A01 date: 11/04/2014
CPU: Dual core Intel Core i3-5005U (-HT-MCP-) cache: 3072 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 7981
clock speeds: max: 1900 MHz 1: 1123 MHz 2: 941 MHz 3: 937 MHz 4: 808 MHz
Graphics: Card: Intel Broadwell-U Integrated Graphics bus-ID: 00:02.0
Display Server: X.Org 1.18.4 drivers: (unloaded: fbdev,vesa) Resolution: 1366x768@60.04hz
GLX Renderer: Mesa DRI Intel HD Graphics 5500 (Broadwell GT2)
GLX Version: 3.0 Mesa 17.2.8 Direct Rendering: Yes
Audio: Card-1 Intel Wildcat Point-LP High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Card-2 Intel Broadwell-U Audio Controller driver: snd_hda_intel bus-ID: 00:03.0
Sound: Advanced Linux Sound Architecture v: k4.15.0-24-generic
Network: Card-1: Broadcom BCM43142 802.11b/g/n bus-ID: 06:00.0
IF: N/A state: N/A mac: N/A
Card-2: Realtek RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
driver: r8169 v: 2.3LK-NAPI port: e000 bus-ID: 07:00.0
IF: enp7s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 500.1GB (5.2% used) ID-1: /dev/sda model: WDC_WD5000LPVX size: 500.1GB
Partition: ID-1: / size: 194G used: 21G (12%) fs: ext4 dev: /dev/sda8
ID-2: swap-1 size: 4.20GB used: 0.00GB (0%) fs: swap dev: /dev/sda9
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 50.0C mobo: 27.8C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 205 Uptime: 6 min Memory: 1142.4/3856.9MB Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.481) inxi: 2.2.35
garrett@garrett-Inspiron-3543 ~ $
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garrett@garrett-Inspiron-3543 ~ $ rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
garrett@garrett-Inspiron-3543 ~ $
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garrett@garrett-Inspiron-3543 ~ $ iwconfig
lo no wireless extensions.
enp7s0 no wireless extensions.
garrett@garrett-Inspiron-3543 ~ $
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garrett@garrett-Inspiron-3543 ~ $ lsusb
Bus 001 Device 006: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 005: ID 04f3:2012 Elan Microelectronics Corp.
Bus 001 Device 004: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0
Bus 001 Device 003: ID 0c45:670b Microdia
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
garrett@garrett-Inspiron-3543 ~ $
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garrett@garrett-Inspiron-3543 ~ $ lspci
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
06:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
garrett@garrett-Inspiron-3543 ~ $