The DirectX driver is known for high latency. For a smoother experience without "missing port" errors, most producers use these superior alternatives: [Solved] ASIO DIRECTX FULL DUPLEX SETUP DIALOG
: If the driver is missing in a newer Cubase installation, you can download the Cubase 6.0 DVD ISO from the Steinberg Support site. Installing this version creates the asiodxfd.dll file in C:\Program Files\Steinberg\Asio , which can then be recognized by newer versions like Cubase 11 or 12. asio directx full duplex driver cubase download fixed