Wireless extension not enabled

gbutkus

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I have loaded Linux Mint 19.3 on three systems and two went really smoothly internet access was available by wireless connection.

The last system loaded but the wireless extension was not enabled. After some searching I found a post that told me to use Driver Manager to find the wireless driver, it is a Realtek and the driver is rtl8821ce-dkms, I checked this driver and was told to reboot. After the reboot wireless access is still not available. What do I need to look at?
 


I have loaded Linux Mint 19.3 on three systems and two went really smoothly internet access was available by wireless connection.

The last system loaded but the wireless extension was not enabled. After some searching I found a post that told me to use Driver Manager to find the wireless driver, it is a Realtek and the driver is rtl8821ce-dkms, I checked this driver and was told to reboot. After the reboot wireless access is still not available. What do I need to look at?
An update, I noticed that my wireless printer is shown and I can print wirelessly from it but I cannot get to the internet wirelessly.
 
Some more data any help greatly appreciated to get wifi working

todd@todd-HP:~$ iwconfig
lo no wireless extensions.

enp1s0 no wireless extensions.

todd@todd-HP:~$ lspci |grep Network
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
todd@todd-HP:~$ sudo lshw -C network
[sudo] password for todd:
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: enp1s0
version: 15
serial: c8:d9:d2:85:11:75
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.0.3 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
resources: irq:16 ioport:4000(size=256) memory:a1204000-a1204fff memory:a1200000-a1203fff
*-network UNCLAIMED
description: Network controller
product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: ioport:3000(size=256) memory:a1100000-a110ffff
 
Correction wireless printer is shown thru cat cable to router, cannot print from it.

Some more info from scanning posts:

todd@todd-HP:~$ lspci
00:00.0 Host bridge: Intel Corporation Device 3e0f (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Device 3e93
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / EHi, in the terminal, try 'rfkill' and see if the card is 'blocked'

If yes, then 'rfkill unblock 1'. Replace '1' with the number of your card, as seen in the previous command.3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 SATA controller: Intel Corporation Cannon Lake PCH SATA AHCI Controller (rev 10)
00:1c.0 PCI bridge: Intel Corporation Device a33c (rev f0)30
00:1c.5 PCI bridge: Intel Corporation Device a33d (rev f0)
00:1f.0 ISA bridge: Intel Corporation H370 Chipset LPC/eSPI Controller (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter


todd@todd-HP:~$ rfkill
ID TYPE DEVICE SOFT HARD
0 bluetooth hci0 unblocked unblocked


luispjoaquim

4 points · 3 months ago


Hi, in the terminal, try 'rfkill' and see if the card is 'blocked'

If yes, then 'rfkill unblock 1'. Replace '1' with the number of your card, as seen in the previous command.

I am lost here. Tried rfkill unblock but dont know what the card number is to use.

PS I am a newbee and limited in Linux knowledge.
 
Some troubleshooting I got from a post but my wireless does not work any help will be appreciated

System:
Host: todd-HP Kernel: 5.3.0-46-generic x86_64 bits: 64 compiler: gcc
v: 7.5.0 Desktop: Cinnamon 4.4.8 Distro: Linux Mint 19.3 Tricia
base: Ubuntu 18.04 bionic
Machine:
Type: Desktop System: HP product: HP All-in-One 22-c0xx v: N/A
serial: <filter>
Mobo: HP model: 8446 v: 0000 serial: <filter> UEFI: AMI v: F.10
date: 10/29/2018
CPU:
Topology: Dual Core model: Intel Celeron G4900T bits: 64 type: MCP
arch: Kaby Lake rev: B L2 cache: 2048 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 11599
Speed: 900 MHz min/max: 800/2900 MHz Core speeds (MHz): 1: 900 2: 900
Graphics:
Device-1: Intel vendor: Hewlett-Packard driver: i915 v: kernel

$ mokutil --sb-state
SecureBoot enabled

bus ID: 00:02.0
Display: x11 server: X.Org 1.20.5 driver: modesetting unloaded: fbdev,vesa
resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 610 (Coffeelake 2x6 GT1)
v: 4.5 Mesa 19.2.8 direct render: Yes
Audio:
Device-1: Intel Cannon Lake PCH cAVS vendor: Hewlett-Packard
driver: snd_hda_intel v: kernel bus ID: 00:1f.3
Sound Server: ALSA v: k5.3.0-46-generic
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Hewlett-Packard driver: r8169 v: kernel port: 4000 bus ID: 01:00.0
IF: enp1s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Device-2: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter
vendor: Hewlett-Packard driver: N/A port: 3000 bus ID: 02:00.0
Drives:
Local Storage: total: 931.51 GiB used: 19.42 GiB (2.1%)
ID-1: /dev/sda vendor: Toshiba model: DT01ACA100 size: 931.51 GiB
Partition:
ID-1: / size: 915.40 GiB used: 19.41 GiB (2.1%) fs: ext4 dev: /dev/sda2
Sensors:
System Temperatures: cpu: 40.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 189 Uptime: 42m Memory: 3.66 GiB used: 1.10 GiB (30.0%)
Init: systemd runlevel: 5 Compilers: gcc: 7.5.0 Shell: bash v: 4.4.20
inxi: 3.0.32


$ rfkill list all
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no


$ mokutil --sb-state
SecureBoot enabled
 

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