No Wifi Realtek RTL8821CE 19.1

[delight]

This sorted my issue in <20mins, thank you so much!

[[pvxf2647]]

Open Terminal and run these:

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wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && chmod +x wireless-info && ./wireless-info

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cat wireless-info.txt | nc termbin.com 9999

Post URL from Terminal, back here, on your reply.

https://termbin.com/oiac

[karlchen]

Hello, [pvxf2647].

https://termbin.com/oiac

Thank you for your detailled problem report. Please, also share your Linux Mint System Information (inxi output) with us, as explained step by step here:
How to post your Linux Mint System Information (inxi report)

Regards,
Karl

[sleeper12]

[pvxf2647],

You should disable secure boot in Bios/Uefi, then see if wifi works.

[[pvxf2647]]

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System:
  Kernel: 5.4.0-91-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: Cinnamon 5.0.7 wm: muffin dm: LightDM Distro: Linux Mint 20.2 Uma 
  base: Ubuntu 20.04 focal 
Machine:
  Type: Laptop System: HP product: HP Laptop 15-dw0xxx 
  v: Type1ProductConfigId serial: <filter> Chassis: type: 10 
  serial: <filter> 
  Mobo: HP model: 85F5 v: 39.43 serial: <filter> UEFI: Insyde v: F.43 
  date: 03/31/2021 
Battery:
  ID-1: BAT1 charge: 34.1 Wh condition: 40.2/41.0 Wh (98%) volts: 12.1/11.4 
  model: COMPAL PABAS0241231 serial: <filter> status: Discharging 
CPU:
  Topology: Quad Core model: Intel Pentium Silver N5030 bits: 64 type: MCP 
  arch: Goldmont Plus rev: 8 L2 cache: 4096 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 8755 
  Speed: 1295 MHz min/max: 800/3100 MHz Core speeds (MHz): 1: 1092 2: 1095 
  3: 1023 4: 1125 
Graphics:
  Device-1: Intel UHD Graphics 605 vendor: Hewlett-Packard driver: i915 
  v: kernel bus ID: 00:02.0 chip ID: 8086:3184 
  Display: x11 server: X.Org 1.20.11 driver: modesetting 
  unloaded: fbdev,vesa resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa Intel UHD Graphics 605 (GLK 3) v: 4.6 Mesa 21.0.3 
  direct render: Yes 
Audio:
  Device-1: Intel vendor: Hewlett-Packard driver: snd_hda_intel v: kernel 
  bus ID: 00:0e.0 chip ID: 8086:3198 
  Device-2: Razer USA USB2.1 Hub type: USB 
  driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-1.1:4 
  chip ID: 1532:0d02 
  Device-3: Razer USA type: USB driver: snd-usb-audio,uvcvideo 
  bus ID: 2-1.2:3 chip ID: 1532:0d01 
  Sound Server: ALSA v: k5.4.0-91-generic 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Hewlett-Packard driver: r8169 v: kernel port: 2000 bus ID: 01:00.0 
  chip ID: 10ec:8168 
  IF: eno1 state: up speed: 100 Mbps duplex: full mac: <filter> 
  Device-2: Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter 
  vendor: Hewlett-Packard driver: N/A port: 1000 bus ID: 02:00.0 
  chip ID: 10ec:c821 
Drives:
  Local Storage: total: 1013.35 GiB used: 23.88 GiB (2.4%) 
  ID-1: /dev/sda vendor: SanDisk model: SDSSDH3 1T02 size: 953.87 GiB 
  speed: 6.0 Gb/s serial: <filter> 
  ID-2: /dev/sdb type: USB model: Multiple Card Reader size: 59.48 GiB 
  serial: <filter> 
Partition:
  ID-1: / size: 457.35 GiB used: 10.52 GiB (2.3%) fs: ext4 dev: /dev/sda4 
  ID-2: /home size: 457.34 GiB used: 1.63 GiB (0.4%) fs: ext4 dev: /dev/dm-0 
Sensors:
  System Temperatures: cpu: 38.0 C mobo: 20.0 C 
  Fan Speeds (RPM): N/A 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/inkscape_dev-stable-focal.list 
  1: deb http://ppa.launchpad.net/inkscape.dev/stable/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/numix-ppa-focal.list 
  1: deb http://ppa.launchpad.net/numix/ppa/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/obsproject-obs-studio-focal.list 
  1: deb http://ppa.launchpad.net/obsproject/obs-studio/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com uma 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: 219 Uptime: 55m Memory: 3.66 GiB used: 1.88 GiB (51.4%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: gnome-terminal inxi: 3.0.38

[[pvxf2647]]

[pvxf2647],

You should disable secure boot in Bios/Uefi, then see if wifi works.

Thanks!