fix no wifi adapter found ubuntu 20.04 code example
Example 1: no wifi adapter found ubuntu 20.04
rfkill list
lspci -v
cp iwlwifi-xxx /lib/firmware
reboot
Example 2: fix no wifi adapter found ubuntu 20.04
sudo apt install linux-generic-hwe-20.04
Example 3: fix no wifi adapter found ubuntu 20.04
sudo apt install linux-generic-hwe-20.04
Example 4: no wifi adapter found ubuntu 18.04
sudo apt install linux-generic-hwe-18.04
Example 5: fix no wifi adapter found ubuntu 20.04
sudo apt install linux-generic-hwe-20.04
Example 6: wifi adapter not found ubuntu 20.04
sudo apt install --reinstall bcmwl-kernel-source