In Device Manager → Adapter Properties → Advanced → Wireless Mode, ensure it’s set to "802.11 b/g/n" or "Auto". Also, your router must be set to "b/g/n" not "b/g only".
Router compatibility or driver power saving. Solution: realtek 802.11n wlan driver windows 7
Windows 7 reached its "End of Life" (EOL) in January 2020. This means Microsoft officially stopped providing security updates and, more importantly for this context, stopped updating their generic driver library via Windows Update. In Device Manager → Adapter Properties → Advanced
Sometimes the download is just a .zip with .inf , .sys , and .cat files. more importantly for this context
October 11, 2023 | Category: Legacy Drivers & Networking