Then we can figure out how to install it. Such a tool is Realtek 11n USB Wireless LAN Utility, a software solution that is meant to work only with certain supported hardware devices.The interface couldn't be any simpler and the fact that it can run minimized in the system tray underline the ease of use this program has to offer. Take a look as the USB adapter and see if you can find out what exactly it is. From what you posted you dont have a wireless adapter plugged into your computer according to windows. But connect to an 802.11ac network above 480, such as an 867 mbps 802.11ac 5 GHz network, and then check diagnostics again. ไม่แสดงสถานะของ systemlog เพราะถูกคำสั่งนี้ยกเลิกการตรวจสอบ When you connect to an 802.11n network, or a 1T1R 802.11ac network, the adapter will stay in USB 2.0 mode because the max speed of 480 for USB 2.0 is more than your network connection rate. I have the Netgear A6210 AC1200-WiFi USB 3.0 Adapter and it works perfectly under OSX 10.11.2 with USB 3.0 and 5GHz networks being recognized. This utility was updated and released on January 20th 2016 on MediaTek website.