Installing a USB wifi unit in Ubuntu 20.04

Gunnar

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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

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What is the output when you put in a Terminal
Code:
lspci |grep Network
and (when the dongle is in)
Code:
lsusb
 
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Gunnar

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

arochester

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

Alexzee

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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.
 
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Gunnar

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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.
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

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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.


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

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

Agnieszka

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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
 

Agnieszka

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

arochester

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Have you Rebooted with the USB in?
 

arochester

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What is the output of
Code:
sudo iw dev
?
 

Agnieszka

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

arochester

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

What is the output of
Code:
lspci | grep Network
AND
Code:
lsusb
 

Agnieszka

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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
 

Agnieszka

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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
 
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arochester

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

Maybe someone else can help.
 
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