Error 0x12 can occur if the remote PC uses an invalid or self-signed SSL certificate.
Inside the Client key, right-click > > DWORD (32-bit) Value . Name it fClientDisableUDP and set its Value data to 1 . Restart your computer. Solution 2: Disable WDDM Graphics Driver microsoft remote desktop error code 0x12
faild to remote device and prompt error code: 0x3 - Microsoft Learn Error 0x12 can occur if the remote PC