TP-Link Archer T4U – 2.4/5GHz – Ubuntu/Debian setup
Posted in : Non classé:
- On : Apr 10, 2018
- 2 year warranty from the manufacturer
- 1200Mbps Wireless Speed
- 2.4 and 5GHz Dual Band
- USB 3.0
- 802.11 ac and 802.11 a/b/g/n backwards compatibility
- Windows 8/MAC setup instructions
- Comes with usb extension cord
Why I bought this ?
Because a picture is worth a thousand words.
Old antenna setup:
I promise, this laptop is fine. It is just missing it’s 4K screen
Setup (Ubuntu 16.04)
sudo apt install rtl8812au-dkms
mkdir -p /tmp/t4u
Compile from source
sudo make install
sudo modprobe rtl8812au
sudo apt-get update
sudo apt-get install dkms
sudo cp -R . /usr/src/rtl8812AU_8821AU_linux-1.0
sudo dkms add -m rtl8812AU_8821AU_linux -v 1.0
sudo dkms build -m rtl8812AU_8821AU_linux -v 1.0
sudo dkms install -m rtl8812AU_8821AU_linux -v 1.0
It should be working now ! Just connect to your wifi router or to the neighbour’s unprotected wifi !
- Not working ! What should I do?
Run this command:
Assuming that you already had an integrated wifi installed, and it’s id was wlp2s0, it will show something like this:
It means your integrated adapter is still active, and needs to be disabled.
2. How to disable my onboard wifi adapter ??
First we need to get the names of the adapters
Run this command:
–> iwconfig is like ifconfig but for wireless
Now we’ll proceed and disable the onboard wifi adapter and enable our new tp-link.
Assuming that onboard (wlp2s0) and the new one (wlxf4f26d14afd5) – you will know by seeing that it is in non-associated mode
Disable onboard wlp2s0 using this command:
sudo ifconfig wlp2s0 down
Enable tplink using:
sudo ifconfig wlxf4f26d14afd5 up
Note: change “wlxf4f26d14afd5” to whatever name is on your system
you should see your new adapter when you run
Now that the tplink t4u is activated you can associate it with whatever access point you want !
Running iwconfig again:
you will notice that wlp2s0 is now: “Not-Associated”
and wlxf4f26d14afd5 is on: access point xx:xx:x:xx:xx:xx
3. It still doesn’t work. I don’t see any new adapters using iwconfig.
Reboot your system and try FAQ again.
Thoughts/Review on the TP-Link archer T4U
1.Awesome network reception –
Before (Killer 2500):
After (TP-link t4u)
Network reception is way better and it even catches nearby networks that my E2500 does not.
2. Latency –
Latency is consistent on both the E2500 and T4U. Response time to servers were similar on both wifi a/b/g/n and wifi ac. No complaints there.
3. Download –
Killer E2500 on wifi ac:
- Consistent download speed at max speed
TP-Link T4U on wifi ac:
- Frequent disconnections at max speed(adapter issue or driver issue?)
Yes, I got disconnected a number of times when I was downloading stuff. All heavy downloads consistently failed on the TP-Link T4U. I thought it was a driver issue and only OS related. But there have been various reports of these disconnects on Windows too.
4. Box contents-
- A manual for MacOs and Windows 8 setup – not useful for me
- An extension usb cable – that was a nice addition, better than plugging it directly into your usb with a large adapter hanging out, and the high possibilty of accidental breakage.
Wifi a/b/g/n – If you are planning to use the TP-Link T4U for wifi a/b/g/n alone, you are safe, it will perform consistently.
Wifi ac – A big NO-NO with the frequent disconnection issues when doing heavy downloads. It does well for other things though.
Signal – If you have low signal issues, this will be perfect for you ! It never goes below 90% signal level.
One line: For wifi ac alone, don’t buy it. For gaming/browsing/heavy downloads on wifi a/b/g/n it’s great with awesome signal reception levels.