Hey swarmofhoneybees,
We see that you're receiving an activation error with your Apple TV, and we'd like to help!
Have a look at this article to get your wifi set up with the recommended settings for your Apple TV:
Recommended settings for Wi-Fi routers and access points
If resetting your network including your modem and router doesn't help resolve the issue, we recommend that you reach out to your ISP for further assistance.
This error usually comes up when there's an issue with your current network connection. You can also try another network to see if you experience the same issue.
We hope this helps!
Warm regards.