This post assumes that you have upgraded to Windows 8.1. If so, you can update the network Wifi drivers from Windows update to the latest driver version. As of this post, the latest driver is dated 11/13/2013, version 1026.4.1023.2013. It works great, and seems to solve the problems some people were having with the Wifi.
To make sure you have the latest network drivers:
- Hit the Windows key + ‘x’ to open the power menu
- Click ‘Device Manager’
- Expand the ‘Network adapters’
- Double click the ‘Realtek RTL8723AU Wireless LAN 802.11n USB 2.0 Network Adapter
- Go to the ‘Driver’ tab
- Click the ‘Update Driver…’ button
- Choose ‘Search automatically…’ and follow the prompts to install the latest driver.
- Reboot