Archer Nano T2U not locating 5Ghz, several drivers, and speed issues
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Hello!
I have a very similar issue as this post: https://community.tp-link.com/en/home/forum/topic/196864
I Have TP LINK ARCHER T2U NANO V1.0
I use a router TP LINK ARCHER C20(ES) V5.0 with dual band
I Use Windows 10 (attaching picture of msinfo32)
So I think, something is happening with the drivers. Are there new drivers or something to do?
Thanks in advance!
My ISP provides me with ~100Mbps symetrical (following is connection trough ethernet cable)
Default windows drivers
Work for 2.4ghz, but not recognize 5Ghz networks. And give me following speeds
The drivers from https://www.tp-link.com/en/support/download/archer-t2u-nano/#Driver
Work for 2.4ghz, but not recognize 5Ghz networks. And give me following speeds (very similar)
The driver from https://static.tp-link.com/2019/201911/20191128/T2Uv3_windows_Driverfils.zip
Work for 2.4ghz, but not recognize 5Ghz networks. And give me following speeds (A bit better)
The drivers from https://static.tp-link.com/2020/202006/20200601/00015960-RTLWlanU_WindowsDriver_1030.38.0712.2019_Drv_3.00.0032.L.zip
Work for 2.4ghz, but not recognize 5Ghz networks. And give me following speeds (very similar)
Driver from https://static-community.tp-link.com/attach/17/7/2020/529f77cf6d834fb3abe20a7001346b5e.cab
Finally Sees Ghz Connections, but it gives me following speeds:
At 2.4Ghz
And at 5Ghz
Well, I just found a Solution.
1) I downloaded the driver at https://www.realtek.com/en/component/zoo/category/rtl8812au-software
which is intended for RTL8812AU instead of RTL8811AU which in theory is T2U. However this package contains several settings for different devices.
2) I unziped the contents of the file to RTLWlanU_WindowsDriver_1030.25.0701.2017_DUA_Drv_3.00.0019.L
3) With help of windows device manager, I went to update manually
4) Choose the path RTWLANU_Driver\Win10X64 within the unziped folder
5) It displays a list of supported devices by the same driver Including some asus devices. And within that list I choose REALTEC 8811CU
6) Let windows install. And voila... Now I can see my 5GHZ wifi and the speed test is satisfactory.
Well, my personal research ends here. Hope it helps someone else, and for the technical team at TPLINK, maybe should double check the distributed driver for the device since it seems to be incorrect, being 8811CU OR 8812AU instead of 8811AU.
Thanks!
@Kevin_Z Hello!
Thank you for your kind response!
Actually Already tried with that driver, its the default one, and the one im using right now. But still, doesn't receive any 5Ghz SSID :(
I Already changed between 20, 40, and 80 Hz on the C20, without success.
Well, I just found a Solution.
1) I downloaded the driver at https://www.realtek.com/en/component/zoo/category/rtl8812au-software
which is intended for RTL8812AU instead of RTL8811AU which in theory is T2U. However this package contains several settings for different devices.
2) I unziped the contents of the file to RTLWlanU_WindowsDriver_1030.25.0701.2017_DUA_Drv_3.00.0019.L
3) With help of windows device manager, I went to update manually
4) Choose the path RTWLANU_Driver\Win10X64 within the unziped folder
5) It displays a list of supported devices by the same driver Including some asus devices. And within that list I choose REALTEC 8811CU
6) Let windows install. And voila... Now I can see my 5GHZ wifi and the speed test is satisfactory.
Well, my personal research ends here. Hope it helps someone else, and for the technical team at TPLINK, maybe should double check the distributed driver for the device since it seems to be incorrect, being 8811CU OR 8812AU instead of 8811AU.
Thanks!
Great job. 
Glad to know it resolved by installing the driver for RTL8812AU manually, we will report this to the engineers and ask them to investigate further.
Thank you very much for the valued finding and sharing. Good day~
