Here you go: https://static.tp-link.com/res/down/soft/TL-WN781ND_V2_Utility_150818.zip Install the driver and utility from the .zip

Solved it by installing an older version of the driver

Model : Hardware Version : Firmware Version : ISP : Okay, so I bought a TL-WN781ND wifi card (pci express), on the label it says (UN) Ver. 2.2, and downloaded the V2 driver (my pc is running windows...