Blocked or paused devices still show active. When I pause a device like a phone or Nintendo switch it still shows active, why?
When a blocked device tries to go to the internet it will be directed to a "Your device is blocked" site. That site is on the internet so it still shows as internet activity in the eero app.
Make sure to check your blocked device to see if it can get to the internet. Rebooting it is also a good idea.