I bought the TL-WPA4220 kit about 2 months ago and i have the same symptoms that the OP had " default gateway is not available" the only difference is that i'm not using wifi but ethernet cable....

A quick update. I checked the adapter's configuration in device manager and the 5ghz country region was wrong (Region #8 52-64). I select the right one according to my country (Region #10 36-48;...

Hi, today i downloaded the newest drivers from tp-link v5.1.28.0 which presumptively supports windows 10 but still can't detect 5ghz signal. This is by far the worst pice of hardware i ever bought...

Model : Hardware Version : Firmware Version : ISP : Hello, i just bought the Archer T2U but i came to the surprise that drivers for windows 10 does not exist... Now i have some Mediatek drivers but i...