One final (and important) step is to remember to connect all of your devices to your new eero network. To do this, simply find your eero network on your device, enter the network password that you’ve created, and get connected. If you’re using the same network name (SSID) and password as your previous router, your devices should automatically reconnect. However, you may need to toggle WiFi on these devices or power cycle for them to recognize the new eero network.
To add a device to your eero network, open your device's WiFi settings, and find your network name from the list of devices. Once you have selected your network from the list, type in your network password. In just a couple of seconds, your device should be online.
After a device has joined your network, you can also go ahead and assign it a nickname from the eero app.