Set wireless options in AirPort Utility on Mac
AirPort Utility Setup Assistant automatically determines the best wireless settings options during setup. You can manually change these options.
Change the 5 GHz network name
Open the AirPort Utility app
on your Mac, located in the Utilities folder in the Applications folder. In the graphical overview, select the base station you want to configure, then click Edit. You may need to enter a password for the base station.
Click Wireless, then click the Wireless Options button near the bottom of the pane.
Select “5 GHz network name,” then enter a different name.
Click Save to close the dialog, then click Update to save the changes.
Change the regulatory region
Open the AirPort Utility app
on your Mac, located in the Utilities folder in the Applications folder. In the graphical overview, select the base station you want to configure, then click Edit. You may need to enter a password for the base station.
Click Wireless, then click the Wireless options button near the bottom of the pane.
Click the Country pop-up menu, then choose a country or region.
Click Save to close the dialog, then click Update to save the changes.
Change the 2.4 GHz and 5 GHz channels
By default, the best available channel is selected. If your base station is experiencing interference, try changing the channel it uses.
Open the AirPort Utility app
on your Mac, located in the Utilities folder in the Applications folder. In the graphical overview, select the base station you want to configure, then click Edit. You may need to enter a password for the base station.
Click Wireless, then click the Wireless Options button near the bottom of the pane.
In the dialog that appears, choose a channel from the 2.4 GHz Channel and 5 GHz Channel pop-up menus.
Note: In most cases, using the Automatic setting is the most efficient, though there may be instances when you want to choose a specific channel for your network.
When you’re done, click Save to close the dialog, then click Update to save the changes.
Computers and devices on the Wi-Fi network automatically tune to the channel your base station uses. If you change the channel of a base station, you don’t need to change the channel for computers connected to the wireless network.