how do i sihn up for ctra? i only have s1 for now

Hey everyone I'm having a problem with setting up my s1 lisense. I alread purchased it and it automatically bumped me up from demo racer. how do i set it up in the game because it keeps telling me i may not be connected to the internet or may be a firewall issue. I just want to know if this is a common problem. Do i need to purchase the S1 and the S2 lisense in order for this to work?

Any kind of help or advise would be appreciated
Thanks Ross