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I just received a new Dell Latitude 5401 running Windows, and I am trying to install Ubuntu 18.04 on it. I dual booted a clean image from the Ubuntu website, but when I log in, the wireless settings say there is "No Wireless Adapter". I have friends with the same problem who are unable to solve the issue. Ethernet cables work, but I need to be able to use this computer on a wireless network.

Any suggestions? Or will it not work at all? It seems as though this model has a certificate from Ubuntu saying that it should work, but it might be that I have a different wifi chip for some reason?

Update: The result of lspci | grep Network is:

3d:00.0 Network controller: Intel Corporation Device 2723 (rev 1a)
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  • Please edit your question to add the output of the command lspci | grep Network, so we know your WiFi adapter model.
    – BeastOfCaerbannog
    Aug 30, 2019 at 11:49
  • More than the make/model of computer (where specs can change), the chipsets inside are what matters. As user3140225 already indicated commands will provide details, and help.ubuntu.com/community/WifiDocs/WirelessTroubleShootingGuide maybe helpful with links if you want to do it yourself
    – guiverc
    Aug 30, 2019 at 11:50
  • @user3140225 I updated it
    – jgreenb
    Aug 30, 2019 at 15:37

1 Answer 1

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I have written a script to fix that.

You have to install the 5.1 kernel or higher and than download the correct WiFi driver and place it in /lib/firmware.

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