Ubuntu 20.04 issues with TP Link AC1300 Archer T4U

I think this worked on the previous Linux versions, but with the new version, the dongle just doesn't get recognized. From the drivers offered on TP-Link's page, there is a Linux installation guide which doesn't seem to be working.

Anyone has any ideas if there's a way I can make this work? I have the feeling it has something to do with the new kernel...

Solution 1:

There are several different hardware revisions, so first you'll need to figure out which one you have. There are a couple different methods:

• Look at the the device

  • Either on the label of the device or on the metal where it plugs in should be the FCC-ID. The version is at the end of this value starting with V, for example TE7T4UV32 is v3.2

    For more information, see here: https://www.tp-link.com/support/faq/46/

• Match the device ID

  • Plug the device in, and run this command: lsusb. You should see an entry like this one:

    Bus 001 Device 007: ID 2357:0115 TP-Link 802.11ac NIC

    The hardware ID should tell you which version you have:

    • 2357:0101: v1
    • 2357:010d: v2
    • 2357:0115: v3

Now you can install the driver depending which hardware version you have:

v1 and v2

These devices have the rtl8812au chipset and you should be able to do as Pilot6 suggested:

sudo apt install rtl8812au-dkms

v3

This device has the rtl8812bu chipset and you'll need to do a little more work to get it working. Thankfully there's a working driver available for it here: https://github.com/cilynx/rtl88x2bu

To get it working, you'll need to first install some packages and check out the Git repo:

sudo apt-get install build-essential dkms git
git clone https://github.com/cilynx/rtl88x2bu.git

Then follow the instructions here to install the driver:

cd rtl88x2bu
./deploy.sh

Note: I previously recommended the driver suggested by Diego (https://github.com/EntropicEffect/rtl8822bu), but I can no longer recommend that driver:

• After resuming from suspend, it would no longer connect to wireless networks and I would have to unplug and replug the device
• That driver is a fork of a fork and unfortunately there is no way to report issues

Solution 2:

Only the bu https://github.com/EntropicEffect/rtl8822bu driver worked for me on kernel 5.4.0-7642-generic. The driver TPLink provides here https://www.tp-link.com/us/support/download/archer-t4u/#Driver is not compatible with newer Kernels.