no wifi, please help

[volk23]

Guys, please help. Installed latest Mint. Wifi is on but not showing any networks. I appreciate any help!

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System:
  Host: leonid-pc Kernel: 4.15.0-54-generic x86_64 bits: 64 compiler: gcc 
  v: 7.4.0 Desktop: Cinnamon 4.2.4 Distro: Linux Mint 19.2 Tina 
  base: Ubuntu 18.04 bionic 
Machine:
  Type: Portable System: Dell product: Latitude E5500 v: N/A 
  serial: <filter> 
  Mobo: Dell model: 0DW634 serial: <filter> BIOS: Dell v: A11 
  date: 04/15/2009 
Battery:
  ID-1: BAT0 charge: 86.6 Wh condition: 69.5/86.6 Wh (80%) 
  model: Samsung SDI DELL KM76096 status: Full 
CPU:
  Topology: Dual Core model: Intel Core2 Duo P8700 bits: 64 type: MCP 
  arch: Penryn rev: A L2 cache: 3072 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx bogomips: 10107 
  Speed: 2611 MHz min/max: 800/2535 MHz Core speeds (MHz): 1: 2527 2: 2584 
Graphics:
  Device-1: Intel Mobile 4 Series Integrated Graphics vendor: Dell 
  driver: i915 v: kernel bus ID: 00:02.0 
  Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa 
  resolution: 1280x800~60Hz 
  OpenGL: renderer: Mesa DRI Mobile Intel GM45 Express v: 2.1 Mesa 19.0.8 
  direct render: Yes 
Audio:
  Device-1: Intel 82801I HD Audio vendor: Dell driver: snd_hda_intel 
  v: kernel bus ID: 00:1b.0 
  Sound Server: ALSA v: k4.15.0-54-generic 
Network:
  Device-1: Broadcom and subsidiaries NetXtreme BCM5761e Gigabit Ethernet 
  PCIe 
  vendor: Dell driver: tg3 v: 3.137 port: 1100 bus ID: 09:00.0 
  IF: enp9s0 state: up speed: 100 Mbps duplex: full mac: <filter> 
  Device-2: Broadcom and subsidiaries BCM4322 802.11a/b/g/n Wireless LAN 
  vendor: Dell driver: wl v: kernel port: 1100 bus ID: 0c:00.0 
  IF: wlp12s0 state: down mac: <filter> 
  Device-3: Dell Wireless 370 Bluetooth Mini-card type: USB driver: btusb 
  bus ID: 8-2.3:5 
Drives:
  Local Storage: total: 74.53 GiB used: 13.09 GiB (17.6%) 
  ID-1: /dev/sda vendor: Western Digital model: WD800BEVS-75RST0 
  size: 74.53 GiB 
Partition:
  ID-1: / size: 72.86 GiB used: 13.09 GiB (18.0%) fs: ext4 dev: /dev/sda1 
Sensors:
  System Temperatures: cpu: 70.0 C mobo: N/A sodimm: 57.0 C 
  Fan Speeds (RPM): cpu: 3889 
Info:
  Processes: 193 Uptime: 21h 57m Memory: 1.90 GiB used: 1.43 GiB (75.3%) 
  Init: systemd runlevel: 5 Compilers: gcc: 7.4.0 Shell: bash v: 4.4.20 
  inxi: 3.0.32 

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0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: brcmwl-0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
3: dell-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: yes
4: dell-bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no



lo        no wireless extensions.

enp9s0    no wireless extensions.

wlp12s0   IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

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Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 005: ID 413c:8156 Dell Computer Corp. Wireless 370 Bluetooth Mini-card
Bus 008 Device 004: ID 413c:8158 Dell Computer Corp. Integrated Touchpad / Trackstick
Bus 008 Device 003: ID 413c:8157 Dell Computer Corp. Integrated Keyboard
Bus 008 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 002: ID 062a:5918 Creative Labs 
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
02:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
02:01.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
02:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
09:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5761e Gigabit Ethernet PCIe (rev 10)
0c:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)

[sleeper12]

Your wifi is hard blocked. Is there a physical switch in front or an Fn & F key combo that will turn it on?
Maybe turn off secure boot in Bios also.

What does this show:

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 mokutil --sb-state 

[volk23]

Thank you! there is no phisical button to turn on the wifi. the light for wifi above the keyboard is lit. so it is on. bellow is the return on the command

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EFI variables are not supported on this system

[sleeper12]

This just worked for someone in another thread, so let's see if it works for you:

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 sudo apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source && sudo apt-get install b43-fwcutter firmware-b43-installer 

Reboot

Still no luck? Run:

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 sudo modprobe b43 

Reboot

[WharfRat]

I purchased a laptop a few yeas ago and the wireless worked when I booted it to Windows to shrink the partition in order to setup a dual boot.

However when I installed and booted Mint the wireless was dead.

The wireless is toggled with the Fn+F2 key combination - you might have a similar situation,,,

[volk23]

So now. I can't get wired or wifi connection. Please advise

[sleeper12]

Did you run the commands I gave?

[sleeper12]

Also, post result of:

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 iwconfig 

[volk23]

Did you run the commands I gave?

I did run it, but its useless because now i dont have any internet connection, so it didnt download what it needed

[volk23]

Also, post result of:

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 iwconfig 

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enp9s0	no wireless extension
lo 		no wireless extension

[sleeper12]

Is there any way to turn your wifi light off/on? I'm confused how it can be on, yet say you are hard blocked at the same time.

[Pjotr]

There does appear to be a physical switch:
https://www.dell.com/community/Laptops- ... ue#M563096

Toggle it.

[volk23]

I did find the switch

[Pjotr]

I did find the switch

And?

[sleeper12]

If you turn it off then back on, any change?

[volk23]

Did you run the commands I gave?

its working. I restarted it again. wired connection appeared. WAs able to run the command. Wifi Works!! Thank you!

[sleeper12]

Hallelujah Enjoy.

[sleeper12]

Thanks Pjotr, I thought there was a switch too.

[Pjotr]

Thanks Pjotr, I thought there was a switch too.

Yes, all those old laptops usually have one....