Wifi stopped working suddenly

[dirk_1968]

Hi,

I am a newbie, installed Linux Mint Cinnamon 20.3 on an old laptop. Installation works fine, I take the laptop with me on vacation.
Last week, I was on a Signal-call with family, and was watching a YouTubevideo at the same time. Suddenly the WiFi blew out. Was totally gone.

When I click on Networking, it says WiFi not available. Strange thing is: with a networkcable I still have Internet on the laptop.

Anyone any idea on how to repair the WiFi?

Laptop is an old Toshiba, Satellite C850 series.

[Pjotr]

Please generate an overview of your system like this:
- Launch a terminal window (this is how to launch a terminal window);
- Make the terminal window full screen, to avoid chopped lines;
- Copy/paste this command into the terminal:

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inxi -Fxpmrz

(if you type: the letter F is a capital letter, and don't omit the space after inxi!)

Press Enter.

Copy/paste the output in your next message.

Do the same with the following four commands:

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rfkill list all

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iwconfig

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lsusb

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lspci

[dirk_1968]

Hi Pjotr,

Thanks for replying. I got this:

System:
Kernel: 5.4.0-132-generic x86_64 bits: 64 compiler: gcc v: 9.4.0
Desktop: Cinnamon 5.2.7 Distro: Linux Mint 20.3 Una
base: Ubuntu 20.04 focal
Machine:
Type: Laptop System: TOSHIBA product: SATELLITE C850-1LJ
v: PSCBWE-0ES00VDU serial: <filter>
Mobo: Intel model: PLCSF8 v: Type2 - Board Version serial: <filter>
UEFI: Insyde v: 6.80 date: 10/01/2013
Battery:
ID-1: BAT0 charge: 27.5 Wh condition: 27.5/48.4 Wh (57%)
model: TKBSS NS2P3SZMC4WR status: Discharging
Memory:
RAM: total: 7.65 GiB used: 2.10 GiB (27.5%)
RAM Report:
permissions: Unable to run dmidecode. Root privileges required.
CPU:
Topology: Dual Core model: Intel Core i3-2348M bits: 64 type: MT MCP
arch: Sandy Bridge rev: 7 L2 cache: 3072 KiB
flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips:
18358
Speed: 798 MHz min/max: 800/2300 MHz Core speeds (MHz): 1: 798 2: 798
3: 798 4: 797
Graphics:
Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics
vendor: Toshiba driver: i915 v: kernel bus ID: 00:02.0
Display: x11 server: X.Org 1.20.13 driver: modesetting
unloaded: fbdev,vesa resolution: 1366x768~60Hz
OpenGL: renderer: Mesa DRI Intel HD Graphics 3000 (SNB GT2)
v: 3.3 Mesa 21.2.6 direct render: Yes
Audio:
Device-1: Intel 7 Series/C216 Family High Definition Audio vendor:
Toshiba
driver: snd_hda_intel v: kernel bus ID: 00:1b.0
Sound Server: ALSA v: k5.4.0-132-generic
Network:
Device-1: Realtek RTL8188CE 802.11b/g/n WiFi Adapter driver: rtl8192ce
v: kernel port: 3000 bus ID: 02:00.0
IF: wlp2s0 state: down mac: <filter>
Device-2: Realtek RTL810xE PCI Express Fast Ethernet vendor: Toshiba
driver: r8169 v: kernel port: 2000 bus ID: 03:00.0
IF: enp3s0 state: down mac: <filter>
Drives:
Local Storage: total: 298.09 GiB used: 186.84 GiB (62.7%)
ID-1: /dev/sda vendor: Toshiba model: MQ01ABD032 size: 298.09 GiB
Partition:
ID-1: / size: 291.86 GiB used: 186.84 GiB (64.0%) fs: ext4 dev:
/dev/sda2
ID-2: /boot/efi size: 511.0 MiB used: 5.2 MiB (1.0%) fs: vfat
dev: /dev/sda1
Sensors:
System Temperatures: cpu: 45.0 C mobo: N/A
Fan Speeds (RPM): N/A
Repos:
No active apt repos in: /etc/apt/sources.list
Active apt repos in:
/etc/apt/sources.list.d/official-package-repositories.list
1: deb http://packages.linuxmint.com una main upstream import
backport #id:linuxmint_main
2: deb http://archive.ubuntu.com/ubuntu focal main restricted
universe multiverse
3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted
universe multiverse
4: deb http://archive.ubuntu.com/ubuntu focal-backports main
restricted universe multiverse
5: deb http://security.ubuntu.com/ubuntu/ focal-security main
restricted universe multiverse
6: deb http://archive.canonical.com/ubuntu/ focal partner
Info:
Processes: 265 Uptime: 6h 52m Init: systemd runlevel: 5 Compilers:
gcc: 9.4.0 Shell: bash v: 5.0.17 inxi: 3.0.38



0: Toshiba Bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes


wlp2s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:on

enp3s0 no wireless extensions.

lo no wireless extensions.



Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 005: ID 04ca:7012 Lite-On Technology Corp.
Bus 001 Device 003: ID 0bda:0138 Realtek Semiconductor Corp. RTS5138
Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 275d:0ba6 USB OPTICAL MOUSE
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub




00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor
Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset
Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family
USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI
Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 2 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset
Family PCI Express Root Port 3 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family
USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC
Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family
6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus
Controller (rev 04)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE
PCI Express Fast Ethernet controller (rev 05)

[sleeper12]

The wifi is hard blocked. Is there a switch on front or side or a keyboard key to turn it back on?

1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes

[Pjotr]

The wifi is hard blocked. Is there a switch on front or side or a keyboard key to turn it back on?

1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes

My thoughts exactly. Look for a very small physical switch.

[dirk_1968]

Hallo sleeper12 and pjotr,

This is pic of my keyboard. I see a key, but that looks like a bluetoothkey.
No switches visible on the laptop.

[dirk_1968]

Dear Sleeper12 and Pjotr,

I tried the 'bluetooth' key. It worked! WiFi is back!

Thanks! Problem solved!

[sleeper12]

Ok, good. You should also turn power management off since it can cause wifi problems:

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 sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf 

Reboot

[dirk_1968]

Can you tell me how? To remind you, I am a newbie with Linux.

[sleeper12]

Can you tell me how? To remind you, I am a newbie with Linux.

Easy, just follow the method here: https://easylinuxtipsproject.blogspot.c ... ml#ID2.1.1