If the computer on which you want to install the driver does not have an Internet connection, then you can download the installation file from the Ubuntu repositories, transfer it to a USB flash drive to a computer without the Internet, and try to install it manually. Offline installation of Realtek RTL8821CE RTL8821CE 802.11ac PCIe Wireless Network Adapter Network controller: Realtek Semiconductor Co., Ltd. If your output contains the line RTL8821CE, then this instruction will help you: To check which integrated Wi-Fi adapter you have, run the command: This is a system that automatically recompiles and installs kernel modules when a new kernel is installed as a result of an upgrade. This driver has been tested on Debian, Ubuntu, Linux Mint, Arch Linux, Gentoo and should work on all derivative distributions. This driver works on Linux kernels > 4.14 (all modern distributions meet this requirement). To fix this problem, just install the required driver. As a result, the OS does not see the device, and there is no Wi-Fi icon at all in the panel next to the clock.

If you have a Wi-Fi adapter based on the Realtek RTL8821CE chipset, then Linux does not have a driver for it by default.

You need to find it and install it manually.įor example, the owner of HP CM-0078AU notebooks may encounter such a problem. But problems start if there is no driver for your Wi-Fi. The drivers are integrated into the Linux kernel and as a result, everything “just works” out of the box. Usually, when we install a Linux distribution on a laptop, often Wi-Fi support is present in whole or in part for most models. See also: How to install Wi-Fi driver in Linux if the computer is offline

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