Archer T3U(EU) only recognized as a USB 2.1 device

Archer T3U(EU) only recognized as a USB 2.1 device
Archer T3U(EU) only recognized as a USB 2.1 device
2019-05-16 18:47:52
Model: Adapter
Hardware Version: V1
Firmware Version:

I have recently bought an Archer T3U(EU) v1.0, which, according to the specs and packaging is USB3.0 capable. However, I can only get the device recognized as a USB2.1 device, no matter where I try to use it.

 

I have tried plugging it into a little single-board computer (Odroid N2), my MacBook Pro, and a Windows/Linux desktop computer, all equipped with functioning USB 3 ports.

 

See some diagnostics from all of these machines below (relevant parts in bold). The Archer T3U (2357:012d) is in every single case only recognized as a USB 2.1 device.

And indeed, I only get the transfer speeds I'd expect from the USB 2.1 standard (~30MB/s with iperf3).


Any idea what's going on here?

 

------------

 

Arch Linux, Kernel v4.9:

[root@odroidn2 michael]# lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 480M
[root@odroidn2 michael]# lsusb
Bus 002 Device 002: ID 05e3:0620 Genesys Logic, Inc.
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 2357:012d TP-Link
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


macOS System Profiler:

802.11ac NIC:
  Product ID:    0x012d
  Vendor ID:    0x2357
  Version:    2.10
  Serial Number:    123456
  Speed:    Up to 480 Mb/sec
  Manufacturer:    Realtek
  Location ID:    0x14200000 / 6
  Current Available (mA):    500
  Current Required (mA):    500
  Extra Operating Current (mA):    0


Windows (using https://www.uwe-sieber.de/usbtreeview_e.html, some parts omitted):

        --------------- Connection Information V2 -------------
Connection Index         : 0x04 (4)
Length                   : 0x10 (16 bytes)
SupportedUsbProtocols    : 0x03
 Usb110                  : 1 (yes)
 Usb200                  : 1 (yes)
 Usb300                  : 0 (no)
 ReservedMBZ             : 0x00
Flags                    : 0x02
 DevIsOpAtSsOrHigher     : 0 (Is not operating at SuperSpeed or higher)
 DevIsSsCapOrHigher      : 1 (Is SuperSpeed capable or higher)
 DevIsOpAtSsPlusOrHigher : 0 (Is not operating at SuperSpeedPlus or higher)
 DevIsSsPlusCapOrHigher  : 0 (Is not SuperSpeedPlus capable or higher)
 ReservedMBZ             : 0x00
Data (HexDump)           : 04 00 00 00 10 00 00 00 03 00 00 00 02 00 00 00   ................

    ---------------------- Device Descriptor ----------------------
bLength                  : 0x12 (18 bytes)
bDescriptorType          : 0x01 (Device Descriptor)
bcdUSB                   : 0x210 (USB Version 2.10)
bDeviceClass             : 0x00 (defined by the interface descriptors)
bDeviceSubClass          : 0x00
bDeviceProtocol          : 0x00
bMaxPacketSize0          : 0x40 (64 bytes)
idVendor                 : 0x2357
idProduct                : 0x012D
bcdDevice                : 0x0210
iManufacturer            : 0x01 (String Descriptor 1)
 Language 0x0409         : "Realtek"
iProduct                 : 0x02 (String Descriptor 2)
 Language 0x0409         : "802.11ac NIC"
iSerialNumber            : 0x03 (String Descriptor 3)
 Language 0x0409         : "123456"
bNumConfigurations       : 0x01 (1 Configuration)
Data (HexDump)           : 12 01 10 02 00 00 00 40 57 23 2D 01 10 02 01 02   .......@W#-.....
                           03 01                                             ..

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3 Replies
Re:Archer T3U(EU) only recognized as a USB 2.1 device
2019-05-17 10:06:20

Hi,

 

For your information, this T3U supports self-adaptive function, that is to say, as long as your device connected to the 2.4GHz, the adapter will be recognized as an USB2.0 device, while once it is connected to the 5GHz, it will be recognized as an USB 3.0 device. 

 

For example, with your Mac connected to the 2.4GHz, when you check the properties of the adapters, it shows up as an USB 2.0 device, while if you switched to 5GHz and re-open the properties page, it will be an USB 3.0 device.

 

May it help and have a nice day. 

 

 

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Re:Re:Archer T3U(EU) only recognized as a USB 2.1 device
2019-05-18 07:03:36 - last edited 2019-05-18 09:51:22

Hi Kevin,

 

Thanks for your info, I did not know that.


Unfortunately it does not help. I was already connecting to the 5GHz band in my above experiments, and I have additionally now disabled 2.4GHz functionality in my router. But to no avail - my T3U keeps getting recognized as USB 2.1 only, on all my systems.

 

Is there anything else I can do?

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Re:Re:Re:Archer T3U(EU) only recognized as a USB 2.1 device
2019-05-20 01:51:46

Hi,

 

As our tested, after you switched to the 5GHz, you need close the about page and re-open it and the T3U will be recognized as an USB 3.0 device, otherwise, it is still the USB2.1 device.

 

So first, you can give it a go. 

 

Meanwhile, may I know where did you see this info? Please show us a screenshot of it. 

 

Thanks in advance. Have a good day. 

 

 

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