The WN721N uses an older chipset. Windows 10 does have a built-in driver for this chip, but it’s a generic, stripped-down version that usually fails to initialize the radio properly. The result? A dead dongle.
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But then comes Windows 10. You plug it in, Windows makes that little "connected" sound, but... nothing. No networks show up. The light on the adapter stays off. tp-link wn721n windows 10 driver
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