Hey @aurelied!
Welcome to the flock 
As today is your go-live day and you have no previous provider, it will be fine to plug in the Cuckoo router now and see if the lights turn green.
If we’re ready to connect you to the network then the internet LED should be flashing green. If not, you’ll just have to wait until Openreach has completed connecting you. This can take up to 11.59 this evening, but in almost all cases it’s actually sometime during the day.
Give it a try and see! If you’re still not connected by this evening then drop us an email at hello@cuckoo.co with your name and address and we’ll take a look.
Good luck!