@2ndComing , @isc0 Hi both. First thing to do is check the TP-Link web-site for Mac drivers. They are clearly listed for both Version 1 and Version 2 variants. (Check the box or small-print on your adapter to see which it is.) For my own TP-Link adapter the drivers work fine for Sierra. They work separately from the macOS wireless system and you get a second TP-Link wi-fi icon in the menu bar.