Thanks, MicDreks! When on that page, keep scrolling. You will see a section titled All Device Usage Last 24 Hours. That shows usage per device in the last 24 hours. Under that there's a button labeled See All Connected Devices. Click that button. That will take you to a section where you will see all the devices currently connected to your network and how much data they have each used in the last 24 hours.
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