Archer T4UH V1/T4UH V2/T9UH Driver Unofficial Version Windows 32 and 64 bit
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.
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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.