Support for TP-Link T4UH wfi ac usb adapter

[chsims1]

Is anyone using this wifi adapter? I did try plugging it in, but it didn’t work out of the box.

The chipset is RTL8812AU according to here, and I have seen links to possible linux drivers, but thought that I woulld ask on this forum before trying them.

Regards,

Ian Sutherland

[fzinken]

@chsims1

I did try plugging it in,

Posting the dmesg log when booting with the stick inserted would give a base of investigation for us.
Because as you can see in several posts the rtl8812au chipset should be supported

Test Edimax EW-7822UAC and NETGEAR A6200

Not true at all, if by 10MB/sec you mean 80Mbps. On my Pi 2 with an Edimax EW-7811UTC I have measured throughput of as high as 130Mbps (yes faster than Ethernet) on 5Ghz in the same room as the base station. (This adaptor is much slower on 2.4Ghz though as it does not support MIMO) With a TP-Link TL-WN823N I can achieve 115Mbps in the same room on 2.4Ghz. (This adaptor does not support 5Ghz but does support 2x MIMO) These throughputs were all measured using iperf to an Ethernet connected Mac…

[chsims1]

Yes, my post was somewhat speculative as I’m using a headerless wifi Pi, and don’t possess a usb keyboard. I am aware of posts on the Edimax, and I just wanted to know if someone was successfully using the TP-Link device. Anyhow if the answer is no, then I will have to carry out further investigations.

[fzinken]

@chsims1

I’m using a headerless wifi Pi, and don’t possess a usb keyboard

So I assume you at least have a TV and remote connected or how would you have determined if it is working?

[chsims1]

The system identifies the adapter as:

dmesg

[ 2981.556059] usb 1-1.5: new high-speed USB device number 6 using dwc_otg
[ 2981.657147] usb 1-1.5: New USB device found, idVendor=2357, idProduct=0103
[ 2981.657180] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2981.657198] usb 1-1.5: Product: 802.11n NIC
[ 2981.657214] usb 1-1.5: Manufacturer: Realtek
[ 2981.657230] usb 1-1.5: SerialNumber: 123456

lsusb

Bus 001 Device 006: ID 2357:0103
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lsusb -t

/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/5p, 480M
|__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=smsc95xx, 480M
|__ Port 5: Dev 6, If 0, Class=Vendor Specific Class, Driver=, 480M


So, the device is incorrectly identified as 802.11n not 802.11ac, and there is no listed driver associated with it (device 6). Note that device 3 is my wired connection, not the wireless.

[chsims1]

Potential drivers (see link in top post) seem to require a modified kernel to recognise USB ID. Can anyone (looking at you Sam ) confirm this please. I’m rather out of my comfort zone here.

[chsims1]

I’ve just found a linux driver from TP-Link but it has to be compiled against the kernel source. Is this available?