Service checker is not working on the day my broadband is activated

[FreddieHM]

My broadband with Sky has just been activated today however I'm having trouble connecting to it. I have run the service checker and it has found problems, however the service checker is down and so I can't continue trouble shooting to fix the problem. And contacting Sky just leads me in circles as they don't openly have a contact number and the generic step to step guides aren't working. The light on my box is red. Any help would be greatly  appreciated

[Highlinder]

@FreddieHM  If this is the day of your activation it can take up to midnight for the data to flow