I have freshly installed Ubuntu 20.04 on my newly build PC but it isn't recognizing my WiFi & Ethernet device. I downloaded Windows 10 on it before that and the Internet connection is just fine but when I use Ubuntu I get nothing. Not even a "No WiFi found" but "no WiFi adapter found". I already went to "Software & Updates" -> "Additional Drivers" like most forums say but there it's only showing me drivers for my graphics card. The WiFi and Ethernet devices are mounted on the Motherboard (msi B550 gaming edge WiFi) and the driver for the motherboard is only available for Windows 10 64bit. In the specification its says that the "Realtek® RTL8125B 2.5G LAN" driver is used but it is running on a "Intel® Wi-Fi 6 AX200". I don't know which exact driver to use and even if I knew I don't know how to install it on Linux because I am new to it.

The only question coming close to my Problem is Here but it's using Arch Linux and I didn't understand a thing on what to do.

How to I get Internet in form of WiFi or Ethernet?

Right now I get my WiFi using USB Tethering from my Phone but it is really slow.

Here is the important Output I get when typing lspci -k:

29:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) DeviceName: RTL8111E Giga LAN Subsystem: Intel Corporation Wi-Fi 6 AX200 Kernel driver in use: iwlwifi Kernel modules: iwlwifi
2a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 04) Subsystem: Micro-Star International Co., Ltd. [MSI] RTL8125 2.5GbE Controller Kernel modules: r8169

And for ifconfig:

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 2547 bytes 209036 (209.0 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2547 bytes 209036 (209.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

and sudo lshw -C network:

*-network description: Network controller product: Wi-Fi 6 AX200 vendor: Intel Corporation physical id: 0 bus info: pci@0000:29:00.0 version: 1a width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list configuration: driver=iwlwifi latency=0 resources: irq:33 memory:fc600000-fc603fff *-network UNCLAIMED description: Ethernet controller product: RTL8125 2.5GbE Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:2a:00.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd cap_list configuration: latency=0 resources: ioport:f000(size=256) memory:fc500000-fc50ffff memory:fc510000-fc513fff

I also followed a lot of tutorials that promised to fix this problem by installing additional drivers but all of them didn't work. I think it has to do something with the build in WiFi and Ethernet. And pleas give me easy to follow institutions. I am new to Linux/Ubuntu and I don't know the terminology yet. Thanks for any answers in advance.

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2 Answers

I have found my solution. I downloaded the driver for realtek ethernet and entert the comands as good as i could and it worked.

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After trying everything i found this to work for my MSI GE66 with killer wifi 6

Enter the following commands into a Terminal one line at a time.

1. Download the Latest Git and Build-Essential packages

 sudo apt update sudo apt-get install -y git sudo apt-get install -y build-essential

2. Download the Iwlwifi-Firmware.git repository

 git clone git:// cd linux-firmware sudo cp iwlwifi-* /lib/firmware/ cd ..

3. Create the Backported Iwlwifi Driver for your current setup

 git clone cd backport-iwlwifi sudo make defconfig-iwlwifi-public sudo make -j4 sudo make install

This command might be necessary to force your machine to use the Driver from boot:

update-initramfs -u

Reboot your Computer and verify it’s working!

Best of luck

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