Note: This FAQ applies to the DIR-628 only
Step 1: Open your web browser and type in the IP address of the router (192.168.0.1 by default).
Step 2: Enter the username (admin) and password (blank by default), and then click Ok or Log In .
Step 3: Click on the Setup tab and Wireless Settings on the left hand side. Next click Manual Configuration.
Step 4: Click the 5.0GHz radio button and click Save Settings.