archer-t4u

DKMS module for TP-Link AC1300 Wireless Dual Band USB Adapter aka Archer T4U and kernel 4.8.1-4.10

What's that?

This is yet slightly another version of the Realtek 8812 driver. The driver is supposed to be used only with Archer T4U V1 device and the latest (4.8.1-4.10) kernel only. I took the drivers which are provided by TP-Link on the support site and fixed them to work with the latest kernel.

Why did you make it if there are tons of versions already?

None of them were working for me, sad but true. I've upgraded my Ubuntu up to 16.10 which includes kernel 4.8.0 and the previously working driver stopped to work. I didn't find a way to fix it. Instead, I grabbed the official drivers and applied changes on my own. You can look through the commit history, changes were pretty trivial. I think that having one specific driver for the device is better than trying to support the ultimate driver for all Realtek-based devices.

Does it work?

Like a charm! Both 2.5GHz and 5GHz work, the connection becomes established in a split second and it handles connections/disconnections of both network and usb smoothly. However, I found two minor issues:

• Driver spams to dmesg a lot.
• Once, I observed crash on usb disconnection but it continued to work when plugged in again.

Ok, how to install it?

The same as any DKMS module:

sudo git clone https://github.com/Grief/archer-t4u.git /usr/src/archer-t4u-4.8.1
sudo dkms add archer-t4u/4.8.1
sudo dkms install archer-t4u/4.8.1
reboot