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How to use the WiFi in Ubuntu 20.04 using realtek semiconductor 802.11n

Debojyoti Chakraborty on September 01, 2020

I have a WiFi adaptor of different company which is supported for windows and macos but no support for Linux/Ubuntu. So it gives me a lot of proble...
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masihuzzaman profile image
Masih • Edited

Really it worked for me. The instructions are simple. The commands are already given just CTRL+C and CTRL+shift+V and you are rocket then. I loved your solution. It made my day.
From somewhere I learned to view devices attached by typing "lsusb" in Terminal. And then I saw Realtech semiconductor device. That lead me at your solution.
Thanks alot.

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Sujal1980

I tried each and every method the code worked fine but when i typed "lshw -C network"
it didn't show in description: Wireless interface either it showed me Etherenet Interface
and also in capabilities please help me i want to use wifi in my ubuntu 20.04

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Michael James Carnaje

same, did you solve your problem sir?

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djose-777

sudo add-apt-repository ppa:kelebek333/kablosuz

PPA for Realtek wifi drivers

If you installed your system in UEFI mode, you must disable secureboot for modules installed by dkms after installation.

You can check installation mode with following command.

[ -d /sys/firmware/efi ] && echo "EFI" || echo "BIOS"

You can check status of secureboot with following command.

mokutil --sb-state
More info: launchpad.net/~kelebek333/+archive...
Press [ENTER] to continue or Ctrl-c to cancel adding it.

Error: retrieving gpg key timed out.

Unable to add this.

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Adapaka Abhiram

Thank you! so much. Now I am able to use my wifi dongle in Ubuntu. Truly awesome work and all worked very well

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SV96 • Edited

Tried 20 diffrent methods to use wifi adapter in my ubuntu 20.04 pc none worked.
but at last this one worked.

just one question after disabling power management will it effect the system

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Debojyoti Chakraborty

I don't think so

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Ralph-1

This was a great article and worked fantasticlly for me. Easy instructions to follow if you have the 802.11N wifi adapter

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Andres Romaña

Thanks this work's for me.

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Ramakrishna Anthwar

wasted nearly one day before i got this post...Awesome work brother...!!

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João Victor Nascimento

Thank you! 🎖️
After trying many different methods, this one solved my problem.

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Kasun Madushan

Worked like a charm. Loads of thanks!