Because Ralink was acquired by MediaTek, official legacy hosting for this specific hardware configuration has ended. Thankfully, because it uses the RT2850 architecture, it can run using legacy drivers or generic Ralink RT2870/RT2850 driver packages. Step-by-Step Guide to Installing the Driver on Windows 10
Select the .inf file (usually rt2870.inf ), click , and then click OK .
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If Windows does not automatically recognize the device, follow these manual steps to force the driver installation:
Check the box for and select Windows 7 or Windows 8 from the drop-down menu. Because Ralink was acquired by MediaTek, official legacy
While the WIS09ABGN is a dual-band adapter, some legacy drivers default strictly to 2.4GHz on Windows 10. Open the device properties in . Go to the Advanced tab.
Getting the Samsung WIS09ABGN LinkStick to work on Windows 10 is a matter of knowing the right workaround rather than finding an "official" download. Because the device uses a standard Ralink chipset, using the or RangePlus drivers is the universally accepted solution within the tech community. If you follow the force-installation steps above, you should be able to breathe new life into this older adapter and enjoy stable Wi-Fi on your modern PC. This public link is valid for 7 days
If you share the (from Device Manager → Details → Hardware Ids), I can confirm the exact chipset and driver version you need.
Once installed, restart your PC. Your Wi-Fi menu should now display available networks. Method 3: Download Legacy Ralink/MediaTek Drivers