8821cu Driver Ubuntu. c files as you may want to patch mine rather than write your o

c files as you may want to patch mine rather than write your own (happy to send a pr if you would prefer). , that can help resolve Net issues. In the comment section one of the reviewer mentions they had success with 8821cu driver. bin with error -2. Contribute to mkolender/rtl8821CU development by creating an account on GitHub. Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets - v5. I found the driver at https://github. github. . realtek. 11b/g/n/ac Client mode May 26, 2023 · 目录 1Orange Pi 5 Plus的基本特性 1. 15）： GitHub - KwanWaiPang/8821cu: Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets Mar 29, 2024 · I did use your 8821cu-20210916 repository, but if you can recommend other github drivers to try I will test them against ubuntu 22. gz wpa_supplicant-2. 9. 29. Realtek 802. sh About to run dkms install steps Error! DKMS tree already contains: rtl8821CU-5. I compiled the driver with debug support, attaching the dmesg lines. I switched the USB dongle to a multi NIC x86 router device. 11ac USB WLAN driver. {footerlinktext} Privacy Policy© 2026 Realtek Semiconductor Corp. 8 kernel from ubuntu where it appears as Bus 003 De Dec 14, 2021 · I am using Edup Wifi adapter model number AC1661 on Ubuntu 20. Feb 6, 2025 · I just installed a new Ubuntu 22. ) Wireless adapter is on RTL8821CU-CG, dual-band, and has bluetooth. Another solution is to avoid the Bluetooth functionality that Zorin OS 16 comes with, and upgrading to Blueman. Sep 4, 2022 · As some Realtek drivers are still not in tree, you need to compile the drivers separately. All rights reserved カードが USB デバイスの場合、 dmesg | grep usbcore を root ユーザーとして実行すると usbcore: registered new interface driver rtl8187 のように表示されるはずです。カードを全く確認できない場合、PCI (e) スロット/USB ポートに適切に接続されていないのかもしれません。. After a quick compile/install/restart the driver was immediately picked up in Ubuntu 20. If steps above worked fine and in order to avoid periodically having to make usb_modeswitch you can make it permanent (Working in Ubuntu 18. gz libnl-3. 0-25, everything works fine with the rtl8821cu driver installed. I am using Ubuntu 18. 11 or any other distro that uses kernel 6. Oct 19, 2024 · as my wifi card doesn't yet have a Debian12 driver, I use a wifi adapter: TP-Link AC600 T2U Nano. 2 and I can't get the wireless chip to work. Sep 16, 2021 · Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU, RTL8821CUH and RTL8731AU Chipsets v5. Plug your USB-wifi-adapter into your PC If wifi can be detected, congratulations. Contribute to seekbalance/wifi-8821cu development by creating an account on GitHub. 41 . STEP 3 : Download driver source Jul 26, 2019 · I just bought a USB WiFi adapter (based on the RTL8821CU chipset), and it upon inserting it into my PC, it didn't work. Sep 9, 2023 · The issue must be related to the driver itself, because the same device works perfectly on my other Windows 11 machine, and the AP itself works just fine with other devices connected. 0-051000rc6-lowlatency and the wifi wont work. Install Synaptic Package Manager from Ubuntu Software if you don't have it. The driver works wh May 27, 2020 · Ubuntu 18. It came with a driver cd, so I popped it in and followed the directions to install the driver for GNU/Linux, which was the standard chmod +x . 1x, WEP, WPA TKIP and WPA2 AES/Mixed mode for PSK and TLS (Radius) IEEE 802. gz 软件移植方法 wpa 软件移植方法 wireless tools 5. Still nothing. Jan 28, 2023 · Hi! I installed an Armbian 22. The Ubuntu Wiki has a good list of wireless cards and whether or not they are supported either in the Linux kernel or by a user-space driver (includes driver name). For the manufacturer I know the driver is RTL8811CU On Nov 20, 2025 · 文章浏览阅读3. 0 - socialsky-io/realtek-wifi-8821cu-driver Jun 6, 2024 · The Secure Boot feature prevents the operating system from loading drivers that aren't signed, which can be the case for some third-party drivers, especially for WiFi adapters. 11ac on Linux (0bda:c811) So you just purchased one of those 802. c, 8821cu. 04, 5. 04 Feb 11, 2023 · sudo . Reboot after commands above finish to have new updates applied. iw output rtl8811cu. If you look in it, you will see that the in-kernel driver (rtw88_8821cu) is blacklisted. gz hostapd-2. 4 Orange Pi 5 Plus的顶层 linux raspberry-pi usb debian ubuntu wifi linux-mint kali-linux linux-driver realtek rtl8811cu rtl8821cu 8821cu 8811cu 8731au Updated on Dec 14, 2025 C {footerlinktext} Privacy Policy© 2026 Realtek Semiconductor Corp. In this article, we will explain how you can install RTL8821CU on Ubuntu. The script is designed for Ubuntu-based distributions but may work on other Linux systems with compatible kernels. 11 b/g/n/ac WiFi compliant 802. It is commonly found in many wireless USB adapters. Then run installations by: sudo apt install build-essential git dkms cloned source code from https://github Wifi driver for Ubuntu 22. Mar 10, 2021 · March 10, 2021 Installing WiFi Driver For Realtek 802. 11ac solutions with Multi-user MIMO (Multiple-Input, Multiple-Output) and Wireless LAN (WLAN) USB interface controller. sh. 4G，但是不是很稳定，速度也不快，所以更换了一个 5G 网卡。安装过程找到网卡lsusb可以看到网卡信息如下：0bda:c811 Realt rtw88 family usb driver for linux rtl8723du rtl8822bu rtl8821cu rtl8822cu - ulli-kroll/rtw88-usb Installing 8821CU driver in Jetson Nano The following guide is to install the driver for Realtek 8821CU into a fresh Jetson Nano official OS installation. 0 x86 generic How may I get the USB Wifi recognized and operational when I plug it in? When I use the lsusb command it shows: Realtek Semiconductor Corp. OpenWrt 24. 04 LTS. 04 Apr 16, 2023 · 前言上个月冲动消费攒了一台华擎DeskMini X300小主机，装了Ubuntu 22. I'm using it on virtualbox and first thing i've done was to se Oct 16, 2024 · Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets - liujt14/8821cu-20241016 Sep 18, 2020 · There is no built-in support for Realtek RTL8811CU [1] [2] and RTL8821CU [3] in Ubuntu 20. 04 LTS and cannot find driver for this. Contribute to whitebatman2/rtl8821CU development by creating an account on GitHub. All rights reserved What is wrong? Answer: Turn secure boot off to see if that allows the driver to work. But they didn't solve my problem until I found that "rtl8821cu driver source code contains some support for rtl8811cu" in alteman's rtl8821cu repo as follow. 412203] usbcore: registered new interface driver rtl8821cu ubuntu@orange-pi5:~/Desktop$ lsmod | grep -i 8821cu 8821cu 1843200 0 Nov 30, 2022 · Драйвер для RTL8811CU RTL8821CU RTL8731AU 0bda:c811 Установка Wi-Fi драйвера Realtek в Linux 30 ноября 2022 г. com/morrownr/8821cu-20210118 , so at first-time runing distro I launch: sudo apt update && sudo apt upgrade the Sep 3, 2021 · Ubuntuで無線LAN接続ができない問題を解決！Realtek 802. 2 days ago · Download Realtek 8821CU Wireless LAN 802. 0 - Rhizomatica/rtl8821cu Sep 4, 2022 · As some Realtek drivers are still not in tree, you need to compile the drivers separately. 04 LTS): Edit usb_modeswitch rules: Oct 4, 2020 · I have also attached my 8821cu. 802. conf is the configuration file. 1, 8, or 7. 环境： Ubuntu16. 2 Orange Pi 5 Plus的用途 1. Before we start, let's go through some of the features of This driver is primarily tested on Debian based distros such as Ubuntu, Raspberry Pi OS and Kali. Also I live in a place where there is no ethernet ports, which makes the process more difficult. ) RTL8811CU and RTL8821CU driver The Realtek RTL8811CU-CG is a highly integrated single-chip that supports 1-stream 802. 11ac USB NIC Windows driver for Realtek Semiconductor Corp. 5~5. the Windows drivers are in "CDROM" storage like location in the hardware. 1 硬件连接 #lsusb Bus 002 Device 002: ID 0bda:c811 Realtek Dec 10, 2018 · How to do Install driver copy the whole repo to your PC, enter (your_dir)/rtl8821cu/, open a terminal and type: make sudo make install sudo modprobe 8821cu the driver installed. linux desktop Dec 28, 2020 · 尽管Raspberry Pi 4具有内置的双频WiFi，但是需要放到金属车体上，无法引出天线，所以需要一个网卡，在WIFI网卡中RTL8811cu是一款带5G的无线网卡，这款网卡有些缺点就是驱动需要编译安装，需要折腾（5G的USB网卡基本不免驱）。本文使用RTL8811CU网 Feb 25, 2025 · 1 Like arunkhan March 4, 2025, 12:17am 7 Some more details about the Realtek 8821cu USB dongle. In an attempt to make this driver work well on many Linux distros, other distros, including the Arch based Manjaro is used for testing. For RTL8811CU, RTL8821CU, and RTL8731AU, the drivers are already upstream so these dongles should be plug and play with official… Realtek RTL8811CU/RTL8821CU USB Wi-Fi adapter driver for Linux - brektrou/rtl8821CU Sep 13, 2023 · I can't use the in kernel rtw88_8821cu driver either, it says it can't upload the firmware and keeps reconnecting. 10. It worked when I initially installed it and it works when I boot it into Windows. 8. 11ac（RTL8811cu/RTL8821cu）ドライバーのインストール手順を詳しく解説し 8821cu ( 8821cu. Also tested on 5. 04? Mar 1, 2024 · The in-kernel driver (rtw88_8821cu) recognizes but does not work, so we installed another driver. This set of instructions is tested using a Techkey USB WiFi adapter, although it should work with any device that contains a Realtek 8821CU. /remove-driver. ) I followed this advice: May 28, 2023 · How to install usb adapter wifi driver (D-link Dwa 171) on Ubuntu 23. Cada caso pu Feb 2, 2023 · Chipset is a Realtek 8821cu and they can be had on ebay for about $10 - mine came with a dell mini that did not have a built in wifi card. So, I use one of the cheap USB WiFi adapter I bought from Amazon Mar 19, 2023 · When using a Realtek usb dongle with wifi/bluetooth, the kernel fails to load rtl_bt/rtl8821c_fw. 4 Realtek RTL8811CU/RTL8821CU USB Wi-Fi adapter driver for Linux - brektrou/rtl8821CU Wifi driver for Ubuntu 22. The following USB wireless dongle uses the RTL8811CU… May 26, 2025 · It uses the morrownr/8821cu-20210916 driver, which supports both 2. 04? Thank you! May 23, 2024 · 这里搬运一下原网址 GitHub - morrownr/8821cu-20210916: Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU, RTL8821CUH and RTL8731AU Chipsets - v5. I followed many guides but nothing seems to work . Jun 25, 2019 · How to install Realtek 8811CU Wireless LAN 802. Dec 8, 2025 · Get the latest official Realtek 8821CU Wireless LAN 802. My recommendation is that you use a distro with a kernel that is as modern as possible and your adapter should be plug and play. 11ac NIC ubuntu下安装Realtek usb无线网卡驱动（8821cu），代码先锋网，一个为软件开发程序员提供代码片段和技术文章聚合的网站。 Nov 20, 2025 · 离线编译离线编译移植的方法比较繁琐，这里给出官网安装包的路径，和一些驱动移植的方法，自行处理。 openssl-1. Kernel preparation unnecess Jan 6, 2023 · This post was finally edited by OrangeDruid at 2023-1-6 14:28 Hi All,I have an USB Wifi & Bluetooth dongle with RTL8821CU chip, just like this:https://www Orange Pi 5 - RTL8821CU device driver for Debian or Ubuntu ,OrangePi Sep 28, 2021 · Initially, I would have suspected that you didn't have the driver installed for your wireless adapter. 16. 11. 04(dual boot with Windows), and after too many attempts to install a driver for my laptop WIFI to get work. 0 ports and 2 USB 3. Oct 17, 2021 · Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets - GitHub - morrownr/8821cu: Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, Dec 19, 2020 · I bought a 5ghz wifi dongle called simply AC600 and plugged in Ubuntu 20. Not to worry, I’ve compiled a list of steps to get it working on your Fedora or Debian based distribution. Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M ID 1d6b:0003 {footerlinktext} Privacy Policy© 2026 Realtek Semiconductor Corp. 驱动安装 5. So far I've installed numerous 8821CU drivers from github (as I'm unable to find the 8811CU one), but none works. 7 (Realtek) (2020-09-29) Plus updates from the Linux community Features IEEE 802. 04 system on my desktop. This is how the device has been detected by the system: RTL8821CU Bluetooth Driver for Linux 3. because I'm new to Linux system and i don't k Mar 21, 2022 · 即可获取链接（对应的内核版本是5. 04 with a kernel version 5. Linux Wireless Support and The Linux Questions' Hardware Compatibility List (HCL) also have a good database of kernel-friendly Feb 28, 2023 · Here's the output I receive when running those commands: ubuntu@orange-pi5: /Desktop$ sudo modprobe 8821cu ubuntu@orange-pi5: /Desktop$ dmesg | grep -i 8821 [ 47. I'm currently using the wired network connection. com/en/component/zo u-software has driver for Windows only, not Linux, but uses the same driver for RTL8821AU and RTL8821CU. com git clone … 安装完Ubuntu之后，免驱动的无线网卡识别失败， lsusb -tv 显示如下/: Bus 02. All rights reserved Apr 18, 2021 · I'm trying to install the driver of the same adapter. Contribute to andydvsn/rtl8821cu_bt development by creating an account on GitHub. 04 Driver for TP-Link AC600 Archer T2UH - Home Network Community I have recently bought TP-Link AC600 Archer T2UH. 04 using a 5. 1m. /dkms-install. Finally, right-click on desired driver package, mark for installation, and click Apply. A good distro as an example would be the soon to be released Ubuntu 24. All rights reserved Jun 27, 2020 · This Realtek page https://www. Nov 24, 2021 · This hardware uses RealTek driver, and can be difficult to setup in Linux. For RTL8811CU, RTL8821CU, and RTL8731AU, the drivers are already upstream so these dongles should be plug and play with official… rtw88 family usb driver for linux rtl8723du rtl8822bu rtl8821cu rtl8822cu - ulli-kroll/rtw88-usb Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets - v5. Wifi works fine but bluetooth doesn't. 1. Finally click on “LP-PPA-kelebek333-drivers” or “LP-PPA-kelebek333-kablosuz” to list all the packages from that repository. Mar 1, 2024 · Execute the following command: cd 8821cu-20210916/ /etc/modprobe. I don't even mind if it's a slow driver, I just want it to work. As long as I boot with kernel 6. 25. 4 Removal of the Driver Step 1: Open a terminal (Ctrl+Alt+T) Step 2: Move to the driver directory $ cd ~/src/8821cu Step 3: Run the removal script $ sudo . I followed the instructions to download and install the driver from this link. (Last week I made a separate "I have no idea" post about this but I thought this needed another post; sorry if a new post shouldn't be the case. The Wifi worked for a few hours before it started connecting and disconnecting every few seconds. The later also has a Bluetooth controller. 04 or 24. May 15, 2024 · Linux - Hardware This forum is for Hardware issues. If not, maybe you need to switch your device usb mode by the following steps in terminal: Aug 21, 2022 · 家里路由器支持 wifi 5G 协议，虽然也兼容 2. ) Jan 25, 2023 · My system recognizes my dongle as supporting Bluetooth, but I cannot actually use the thing in any of the Bluetooth control interfaces (bluetoothctl, btmgmt, the graphical Bluetooth settings, etc. ko ) Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets v5. 4 - GitHub - morrownr/8821cu-20210916: Linux Driver for USB WiFi Adapters Everything works great now! Jul 26, 2019 · I just bought a USB WiFi adapter (based on the RTL8821CU chipset), and it upon inserting it into my PC, it didn't work. sh Step 4: Reboot $ sudo reboot Recommended Router Settings for WiFi Note: These are general recommendations based on years of experience but may not apply to your situation so testing to see if any help fix your problem is RTL8821CU Bluetooth Driver for Linux 3. 4. txt Oct 3, 2023 · Hello, I have a new install of LinuxMint 21. The Oct 31, 2020 · Hi, My wireless adapter arrived today and I'm stuck. (Here's its product page and its driver page if it helps. This driver is primarily tested on Debian based distros such as Ubuntu, Raspberry Pi OS and Kali. 12. The good news is that your 0bda:c811 device has support and has been the subject of several answers and duplicates here before; for example: USB WIFI Realtek not an MTP device The bad news is that the previous driver files will not properly compile on Ubuntu 19. Could you please help me in knowing how to use this Wifi adapter in Ubuntu 18. /install. 11 Jammy XFCE on my Orange Pi One device and would like using wifi+bluetooth USB stick with rtl8821cu chipset. 04 (as the post mentions). 10 that uses kernel 6. 3 Orange Pi 5 Plus的硬件规格 1. sh , and then . I have to download the RTL8811CU/RTL8821CU driver source code, compile to a kernel module, add it to the kernel, and switch to the WiFi USB mode. The device has 2 USB 2. 2. Oct 7, 2024 · There is a driver for your device in RTW88 in the kernel. Te contamos cómo buscar e instalar un controlador para un dispositivo Wi-Fi cuando no está disponible en la distribución Linux que estés usando. It is a "driver less" device i. 0-xx kernel version. 04 (I'm about to install this to my rpi 4 anyway, it will be released in short time) linux raspberry-pi usb debian ubuntu wifi linux-mint kali-linux linux-driver realtek rtl8811cu rtl8821cu 8821cu 8811cu 8731au Updated on Dec 14, 2025 C Jul 12, 2020 · Recently I did a fresh install of Ubuntu (actually Kubuntu) 20. 5k次。本文档提供了在Linux环境下安装RTL8821CU无线网卡驱动的详细步骤，包括代码下载、构建安装、驱动验证等过程，并针对特定Linux内核版本进行了说明。 Oct 20, 2023 · To fix this I installed a driver morrownr/8821cu-20210916 from github. Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux? Jun 8, 2020 · I'm currently on Ubuntu20. d/8821cu. 04 laptop, but get an error message. I'm kinda new to kali linux. Jan 25, 2023 · My system recognizes my dongle as supporting Bluetooth, but I cannot actually use the thing in any of the Bluetooth control interfaces (bluetoothctl, btmgmt, the graphical Bluetooth settings, etc. Unfortunately, my PC motherboard (Gigabyte Z370) does not have any built in wireless or bluetooth chipset, and somehow I need to get internet working. 4 (Realtek) (20210916) plus updates from the Linux community May 23, 2024 · 这里搬运一下原网址 GitHub - morrownr/8821cu-20210916: Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU, RTL8821CUH and RTL8731AU Chipsets - v5. Aug 10, 2023 · What is RTL8821CU? rtl8821cu is a wireless network card driver produced by Realtek. Bluetooth works as well. Can someone help me? iwconfig: Aug 21, 2022 · 家里路由器支持 wifi 5G 协议，虽然也兼容 2. But seeing your additional drivers APP, tells me that you do have the drivers installed. 4GHz and 5GHz Wi-Fi networks. 1, 8, and 7 (32-bit/64-bit) Ubuntu 经常修改内核 API，这可能会导致构建问题。您需要手动调整源代码或寻找特定于您的发行版的解决方案。我们无法支持这些类型的问题。 Q3: 内核更新后如何更新驱动？您需要从此存储库中提取最新代码并重新编译驱动程序。请按照维护部分中的步骤 Jan 12, 2024 · GitHub - morrownr/8821cu-20210916: Linux Driver for USB WiFi Adapters that Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU, RTL8821CUH and RTL8731AU Chipsets - v5. In your procedure there are some errors, the driver we need is RTL8811 not RTL8821, that's the main reason it doesn't work for you. 04，用来解决M1芯片MacBook Pro上无法编译x86_64架构的StarRo Mar 30, 2022 · I had an issure with the drivers for the "NW602 AC600" wifi adapter lsusb gave this as an output: Bus 003 Device 002: ID 0bda:c811 Realtek Semiconductor Corp. To make it work on ubuntu, I have searched for many relavent guides on the Internet, such as Driver for rtl8811cu? - Ubuntu Forums and TP-LINK TL-WDN5200 usb wifi adapter install on ubuntu?. This chipset supports both Wi-Fi (802. I downloaded the driver code from here. It came with a driver cd, so I popped it in and followed the directions to i Apr 25, 2019 · Install WiFi driver on Ubuntu ref: whitebatman2/rtl8821CU Realtek 802. 1 什么是 Orange Pi 5 Plus 1. I've reinstalled Linux and I've installed multiple drivers. 11ac USB NIC network adapter drivers for Windows 11, 10, 8. 4G，但是不是很稳定，速度也不快，所以更换了一个 5G 网卡。安装过程找到网卡lsusb可以看到网卡信息如下：0bda:c811 Realt Apr 6, 2022 · 写在前面：电脑内置无线网卡出了些小问题，尽管可以搜到网络但是信号很弱，这不能够啊，所以先买了一款tenda u9 usb无线网卡,奈何在ubuntu上无法自动安装驱动,并且官方并不支持其在ubuntu上的使用,因此可以考虑在ubuntu上编译其驱动源码即可. 11ac USB WiFi cards but it’s not working on Linux. Oct 16, 2024 · Linux Driver for USB WiFi Adapters that are based on the RTL8811CU, RTL8821CU and RTL8731AU Chipsets - liujt14/8821cu-20241016 Feb 27, 2021 · I'm trying to follow the steps in this answer to make this USB wi-fi adaptor work on my Ubuntu 20. tar. Well, it works. 04 on my desktop PC. h and 8821c. Jun 23, 2023 · I've installed 8821cu-20210916 and it's works well with the device apart from the driver isn't loading on boot and requires unplugging and re-inserting to load. Aug 26, 2023 · I've been trying the whole afternoon to make it work . After installation, the adapter works when unplugged and plugged in. 11ac（RTL8811cu/RTL8821cu）ドライバーのインストール手順を詳しく解説し Jan 28, 2023 · Hi! I installed an Armbian 22. 11ac USB NIC on Ubuntu 19. gz wireless_tools. 0. Check and update all PC drivers for Windows 11, 10, 8. 0 ports. 11ac) and Bluetooth functionalities. e. 2 days ago · There is also a List of Wi-Fi Device IDs in Linux. Update drivers using the largest database. 1 You cannot add the same module/version combo more than once.

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