A new Wi-Fi 7 router can expose old smart-home limitations. Learn how 2.4 GHz setup, WPA3 compatibility, band steering and network isolation affect older bulbs, plugs, cameras and speakers—and how to reconnect them without weakening the entire network.

Replacing your router does not have to mean resetting every smart bulb, camera and speaker. Preserve the right network settings and most devices can reconnect automatically.