Please follow the article from where it says:
- Creating an account on a computer
- Creating an account on iPhone, iPad, and iPod touch
ImportantFirst step of troubleshooting should always be to restart device(s) and router. Then check your account status in your account home. You should always see 3 green check marks if the device you are using to visit the account home is set up correctly.
If you are getting a proxy/unblocker warning then make sure to read this article.