The Ubiquiti cloud controller is a in built piece of software which allows you to manage your entire Unifi network remotely. It also allow you to manage access points, switches, routers, and cameras.
When you are notified via email about the activation date for your Ethernet connection, the message will include the link to the Ubiquiti Cloud controller website.
Once you click the link contained in the email, the below screen will open:
Enter your details and create a password. Tick the box to accept the Terms of Service and Privacy Policy, then click Create Account.
💡Ensure the registration is completed before your activation date in order to get instant access to your network.