I'd suggest trying this driver before starting a thread in the forums, lol.

T4UH v1 and v2 drivers are pretty old, last time I checked. Official T4U v1's driver wasn't updated since 2015 and was super buggy. Took up 6GB on my hard drive, lmao!

Download the driver here: https://sites.google.com/site/bangaroovh/searchindex/tplinkdriver

Here's the old forum page.

https://forum.tp-link.com/showthread.php?101991-Archer-T4UH-V1-T4UH-V2-T9UH-Driver-Unofficial-Version-Windows-32-and-64-bit

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

Made with the latest Realtek drivers! ONLY tested to work with Archer T4UH v1 on latest build of Windows 10. (AC 1200 High Gain Wireless Dual Band USB 3 Adapter)
Also supports Windows XP, XP 64 Bit, Vista 32 and 64 Bit, 7 32 and 64 bit, 8 32 and 64 bit, and Windows 8.1 32 and 64 bit.

Since they all use the same Realtek chip, it should work with these as well:
TP-LINK Archer T4U
TP-LINK Archer T4U v2
TP-LINK Archer T4UH
TP-LINK Archer T4UH v2
TP-LINK Archer T4UHP
TP-LINK Archer T9UH

Increased my speeds and should fix problems with the driver that hasn't been updated since 2015.