This article provides instruction on how to install the Linux firmware to detect the wireless card.
Wireless card is not recognized in Ubuntu 18.04 with not supported kernel versions.
- Check whether your systems uses the kernel version supported by your Wireless adapter.
- Install the latest firmware corresponding to your kernel version and Wireless adapter model using the command prompt: cp iwlwifi-*.ucode /lib/firmware
- If the issue persists, contact Intel Customer Support for further assistance.