Which WiFi adapter exactly? Please post the result of lspci or lsusb.

If your Wi-Fi isn't detected due to an old kernel, first try updating your current Linux distribution (e.g., sudo apt update && sudo apt upgrade for Ubuntu/Debian) as this often includes newer kernels with better hardware support. If that doesn't work, consider mcdvoice downloading a recent ISO of a modern distribution, such as Deepin V23 Beta or a current version of Arch/ArcoLinux, as these usually ship with up-to-date kernels that may recognize your Wi-Fi adapter.