why my wifi logo have an Exclamation mark on ubuntu
Checking the Network Connection
To diagnose the issue with the WiFi connection on Ubuntu, you can start by checking the network connection status using the following command:
nmcli general status
Viewing Network Manager Logs
To further investigate the issue, you can view the Network Manager logs by using the following command:
journalctl -u NetworkManager
Checking WiFi Interface
You can also check the status of the WiFi interface using the following command:
iwconfig
Verifying Network Configuration
To verify the network configuration, you can use the following command to display the network interfaces and their configurations:
ip addr show
Restarting Network Manager Service
If the issue persists, you can try restarting the Network Manager service using the following command:
sudo systemctl restart NetworkManager
Verifying Network Manager Service Status
To ensure that the Network Manager service is running, you can use the following command:
systemctl status NetworkManager