Ad Block is a new eero Secure+ feature that is currently in beta and available to all eero Secure customers. With Ad Block enabled, devices on your network will block most ads that appear on websites and within many applications. Ad Block works at the network level, meaning it protects all the devices on your network. You can enable ad blocking by opening the eero app, selecting the Discover tab, and tapping on the Ad Blocking bubble in the eero Secure section to enable the feature.