The following is straight out of the Orbi manual (page 82):
1. Launch a web browser from a computer or mobile device that is connected to your Orbi network.
2. Enter orbilogin.com. A login window opens.
3. Enter the router admin user name and password.
4. Select ADVANCED > Advanced Setup > Wireless Settings.
5. To control the SSID broadcast, select or clear the Enable SSID Broadcast check box.
When this check box is selected, the router broadcasts its network name (SSID) so that it
displays when you scan for local WiFi networks on your computer or WiFi device.
6. Click the Apply button.
Your settings are saved.
