If you're using Windows, you can also try using the built-in Windows Update tool or the Device Manager to update your driver:
" or "Ralink" wireless LAN cards often sold as mini USB dongles. 802.11 N Driver Download -FREE- Jasvendra Parmar
Jasvendra Parmar provides a comprehensive guide for downloading and installing the 802.11n Wireless USB Adapter driver —specifically for the Model No: OT-WUA950NM —on his blog and through his YouTube channel, Kuchh Naya Sikhen If you're using Windows, you can also try
Because OEMs (Dell, HP, Acer) customize drivers for their laptops. Jasvendra Parmar collects these OEM-specific drivers that have unlocked features. Official sites only provide generic reference drivers. If you're using Windows
Here is the safe, official guide to downloading and installing 802.11n WiFi drivers.