Installing a USB wifi unit in Ubuntu 20.04

[Gunnar]

I have installed Ubuntu 20.04 on an aging laptop. But the wifi does not work with Linux, for some reason, so I therefore bought a USB wifi thing for it.
However... Apparently, the USB wifi needs to be installed in some way. I was hoping that it would immediately just start to work, like a remote keyboard or mouse does. But if I just attach it, the computer seems not to notice at all that it's there, as nothing happens. There is a CD in the box, but its content is for Windows and Mac.
So does anyone know a way to make it work with Ubuntu?

 

[arochester]

What is the output when you put in a Terminal

lspci |grep Network

and (when the dongle is in)

lsusb

 

[Gunnar]

Forgive me, I am more of an amateur than you think I am. I do not understand your questions...

 

[arochester]

What is the make and model of your computer?
What is the male and model of your USB Wifi?

 

[Alexzee]

Depending on what USB WiFi dongle you purchased you will have to install a driver for it.

Here are usb wifi devices that work with LInux.

Best USB WiFi Adapters for Linux (Review) in 2021

It is hard to find a Linux-compatible USB WiFi adapter these days, as mainstream manufacturers like Netgear, Belkin, and others do not take the platform

www.addictivetips.com

 

[Gunnar]

What is the make and model of your computer?
What is the male and model of your USB Wifi?

The computer is a Fujitsu Siemens Amilio, and the USB Wifi is named TP-LINK AC600.

 

[Gunnar]

Depending on what USB WiFi dongle you purchased you will have to install a driver for it.

Here are usb wifi devices that work with LInux.

Best USB WiFi Adapters for Linux (Review) in 2021

It is hard to find a Linux-compatible USB WiFi adapter these days, as mainstream manufacturers like Netgear, Belkin, and others do not take the platform

www.addictivetips.com

On this list is TP-LINK N150. Mine is a TP-LINK AC600.
Isn't it strange that mine does not work, when that one does?

 

[Alexzee]

On this list is TP-LINK N150. Mine is a TP-LINK AC600.
Isn't it strange that mine does not work, when that one does?

Yeah that is a little strange.
I think it depends on what kernel you have.

Ubuntu 18.04 Driver for TP-Link AC600 Archer T2UH - Home Network Community

I have recently bought TP-Link AC600 Archer T2UH. I am using Ubuntu 18.04 LTS and cannot find driver for this. Could you please help me in knowing how to use this Wifi adapter in Ubuntu 18.04?

community.tp-link.com

You can try installing the driver and see if it works.

Download for Archer T2UH | TP-Link

TP Link - Download Center Detail

www.tp-link.com

IF not than you may have to purchase the TP-Link N150.

 

[Agnieszka]

I have similar problem. I bought Cudy WU700 AC 650Mbps and installed on my pc. The computer sees the usb however does not show any wireless options. Can anyone help?

The system is UBUNTU 20.04

 

[arochester]

http://www.cudytech.com/filedownload/196490 ?

 

[Agnieszka]

This is the manual I used to install the driver. But I still don't see wireless...

 

[arochester]

Have you Rebooted with the USB in?

 

[Agnieszka]

Yes I did. Twice...

 

[arochester]

What is the output of

sudo iw dev

?

 

[Agnieszka]

The first time it asked me for password and produced no output. Then just no output.

 

[arochester]

Hmm. The purpose of that command was to find the name of available wifi adapters from the command line.

What is the output of

lspci | grep Network

AND

lsusb

 

[Agnieszka]

00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (Lewisville) (rev 04)

and

Bus 002 Device 003: ID 0bda:c811 Realtek Semiconductor Corp.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 17ef:60a9 Lenovo
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

 

[arochester]

https://www.prado.lt/how-to-install-realtek-8811cu-wireless-lan-802-11ac-usb-nic-on-ubuntu-19-04

 

[Agnieszka]

I followed the instructions from the link and still nothing...

[email protected]:~/build/rtl8821CU$ ls /lib/modules/$(uname -r)/kernel/drivers/net/wireless/realtek/rtl8821cu
8821cu.ko

 

[arochester]

I am beginning to wonder if it works at all...

Maybe someone else can help.