Una i-check mo kung detected ang network interface(s) mo:
Code:
ip link
Then check kung may IP address at default gateway at resolver:
Code:
ip address
ip route
cat /etc/resolv.conf
Kung wala, determine kung ano ang network agent mo, ie NetworkManager, netplan (Ubuntu), traditional /etc/network/interfaces (Debian) etc. Then configure them such that it can connect to your WiFi by supplying correct password etc.