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Wireless Card not working

asked 2018-09-12 17:25:39 -0500

RKelley gravatar image

Just installed fedora 28 Workstation on a desktop computer a few minutes ago. Now I am trying to get the wireless network card to work. The device says it is a TP-Link Archer T4U. On a seperate machine with windows 10 I have verfied that the device works fine. However on the Linux machine it is if it is not even plugged in. This is the 1st time I have done anything with Linux, so a bit out of my league. Was hoping someone could tell me what I am missing, I am guessing a driver. And more importantly how do I fix this issue?

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Hi, look at the casing of the card and check which revision is it (V1 - V3), depending on it, different drivers will be required.

ozeszty gravatar imageozeszty ( 2018-09-13 09:04:26 -0500 )edit

@RKelley , please read the part Provide information about to help people help you betterin

hhlp gravatar imagehhlp ( 2018-09-13 11:18:20 -0500 )edit

Check material information about your wifi NIC.

Please Read and return information

Do you use Network-manager ?

fedofix gravatar imagefedofix ( 2018-09-13 16:31:54 -0500 )edit

OK I am looking at it & I sure the heck can not see anything about a revision number. At the top it reads TP-LINK AC1300 Wireless dual band USB adaptor. Then under that the next line reads Model:Archer T4U. Then below that reads ic:8853a-T4U next line down says fcc id:TE7T4UV2. For indoor use only then I have the serial number. Just to the side of the serial number it has CE1588 & made in china. But I don't se a revision number in any of that.

RKelley gravatar imageRKelley ( 2018-09-14 18:03:47 -0500 )edit

No I am not using Network manager. This card plugs into a USB port, no not sure your webpage is pertinent. But I did run the LSPCI command & the only device that says the words network is the Gigabyte NIC card. But that is the one built into the motherboard, and we are wanting to go wireless with things hence the card we got.

RKelley gravatar imageRKelley ( 2018-09-14 18:16:56 -0500 )edit

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answered 2018-09-15 06:18:01 -0500

ozeszty gravatar image

Hi, FCC ID:TE7T4UV2 points to second revision (V2) of TP-Link Archer T4U, here you'll find more information about the adapter:

What you need to get it running is driver for RTL8812AU chip from e.g. this repo: v5.2.20 seems the most reasonable for now, it's patched for newer kernels and more stable than v5.3.4 (marked as WIP).


Install prerequisites:

sudo dnf install make automake gcc kernel-devel kernel-headers bc elfutils-libelf-devel dkms

Download driver to some directory where you keep sources, e.g. ~/source (create it first if you don't have it yet):

mkdir ~/source && cd $_
git clone -b v5.2.20
cd rtl8812au

Install driver:

sudo sh

Load driver:

sudo modprobe 88XXau


From time to time update your driver:

cd ~/source/rtl8812au
git pull

If git pull doesn't update anything, you don't need to continue, since there were no updates.

sudo sh
sudo sh
sudo modprobe 88XXau
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Asked: 2018-09-12 17:25:39 -0500

Seen: 905 times

Last updated: Sep 15 '18