WiFi not working on fresh Ubuntu 22.04 installation

Question

Ubuntu 22.04, linux kernel - 5.15.0-37-generic.

$ inxi -Nazy
Network:
  Device-1: Realtek RTL8822CE 802.11ac PCIe Wireless Network Adapter
    vendor: Hewlett-Packard driver: N/A modules: rtw88_8822ce pcie: gen: 1
    speed: 2.5 GT/s lanes: 1 port: 3000 bus-ID: 01:00.0 chip-ID: 10ec:c822
    class-ID: 0280
  Device-2: Realtek 802.11ac WLAN Adapter type: USB driver: btusb
    bus-ID: 1-10:5 chip-ID: 0bda:b00c class-ID: e001 serial: <filter>

$ iwconfig

lo        no wireless extensions.
usb0      no wireless extensions.

What I've tried:

• How to install Wi-Fi driver for Realtek RTL8821CE on Ubuntu 18.04?
• https://www.geeksforgeeks.org/installing-realtek-rtl8821ce-driver-to-use-the-wireless-network-interface-in-ubuntu/

There seems to be a network adapter on the official Ubuntu website.

But I don't know how to install this network adapter. I'm currently asking this using USB tethering with mobile data.

Answer 1

I had a similar issue. After updating linux firmware, reinstalling Linux, Windows I finally discover that there are two factors which cause it:

1. Windows Hibernate
2. Windows fast startup

With Windows fast startup turned off and Windows shutdowned (not hibernated, sleeped etc.) I have Wifi on Linux. Windows has to block the wifi adapter when not shut down completely.

I hope this will help you get it running !

Answer 2

If you can connect using an Ethernet cable or some other method, you can share Wi-Fi using the Bluetooth of your cellular device, try running the command

sudo apt install rtl8821ce-dkms --reinstall

This worked for me on my Hp 14s laptop. Hope this helps!