Fix Linux Network Card Recognition

If Linux is unable to recognize the network card, you can try the following solutions:

1. Check hardware connections: First, make sure the network card is properly connected to the motherboard slot, and that the cable connections are secure.
2. Check if the network card is recognized: use the command ifconfig -a or ip addr to see if there are any recognized network card devices in the system.
3. Verify if the driver is correctly installed: Sometimes the Linux system lacks the appropriate driver for the network card, requiring manual installation or update of the driver.
4. Restarting the network service: Trying to restart the network service or rebooting the system can sometimes resolve issues where the network card is not recognized.
5. Updating the system kernel can sometimes fix the issue of the network card not being recognized.
6. Check the BIOS settings: Make sure to look for the option related to the network card in the motherboard BIOS settings, and ensure that the network card is enabled.

If the above methods fail to resolve the issue, it is recommended to check the system logs for more detailed error information and try searching for relevant solutions. If the problem persists, consider replacing the network card or contacting the hardware manufacturer for assistance.