How to Use the 5Ghz Band on Your Router
Since the proposal for Wireless-N technology was made in 2007, nearly every router manufacturer has begun making Wireless-N capable routers. Wireless-N dual-band technology improves upon the older Wireless-G; it can transmit signals in up to 300 MB/s on each band, 2.4GHz and 5GHz. If your Wireless-N router supports dual band transmission on the 2.4GHz and 5GHz bands, set up the 5GHz band for use.
Log in to your Wireless-N router's configuration utility. To do this, type your router's internal IP address (usually "192.168.2.1," "192.168.1.1" or "192.168.0.1") in your Web browser's address bar.
Click on the "Wireless Settings," or similarly named, option in the configuration utility's main menu.
Locate the "Wireless Network (5GHz)," or similarly named, section of the page and select the "Enable SSID Broadcast" check box. If desired, enable a security option, such as WEP, WPA or WPA2.
Take note of the 5GHz network name in the "Name (SSID)" text field or change it to the desired name. Click "Apply" when ready to enable the 5GHz band on your router.
Connect to your router's 5GHz network with your computer or other Wireless-N device by selecting the network name from the list of available networks.