I recently installed ubuntu20.04 and found that it cannot connect to wifi, and there is no wifi icon, it seems that there is no driver
Solution
method one
First connect the computer with a network cable
Execute in terminal
sudo apt update
sudo apt-get install bcmwl-kernel-source
Method Two
# List your network
ip a
There is a YAML configuration file under /etc/netplan/
Modify the configuration file
ubuntu@ubuntu:~$ cat /etc/netplan/50-cloud-init.yaml
network:
ethernets:
eth0:
dhcp4:true
optional:true
version:2
wifis:
wlan0:
dhcp4:true
access-points:"Ssid of your wifi":
password:"Your password"
netplan try
netplan apply
I restarted it then
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