Splitting 2.4 and 5.0 GHz networks on Apple Airports and Time Machines



Open Macintosh HD > Applications > Utilities > AirPort Utility

Click on the Time Capsule icon, then click Edit in the small box that appears

Click the Wireless tab at the top of the window

Click the Wireless Options button near the bottom of the window

Enter a check mark in the box next to 5 GHz name

Click Save

Click Update at the lower right of the window and allow a full minute for the Time Capsule to restart