Your network card is likely fine if the Wi-Fi icon is missing. Use these troubleshooting steps to quickly bring it back.

Intel PROSet/Wireless Network Adapter Software and Driver 20.10.2 Windows 8/8.1 32-bit Intel PROSet/Wireless Network Adapter Software and Driver 20.10.2 Windows 7 64-bit ...

Installs base drivers, Intel PROSet for Windows Device Manager, advanced networking services for teaming and VLANs (ANS), and SNMP for Intel Network Adapters for Windows 7/8/10/11. Download the ...

If you've attempted a fresh install of your operating system, you may have discovered that some hardware drivers are not included in all installation disks. There are so many different manufacturers ...

There are many reasons for this problem; one of the reasons is that Windows Update failed to install or update the Network drivers, in that case, you have to update the required driver manually.