DO THIS BEFORE POSTING
Check your own devices and/or internet connection first, restart your router etc.
Check if Steam, PlayStation Network or Xbox Live are down.
HOW TO REPORT AN ISSUE
Copy this and use it as a template (delete/replace whatever you don't need):
Platform: Steam / PlayStation / Xbox
Place where error was encountered: Events / Clubs / Time Trial
Kind of error: "Server refused connection attempt" / "Error code ending in 55-58"
No additional details, comments or screenshots are required unless we ask for them.
You can also try emailing the above to firstname.lastname@example.org
This thread is not for one-to-one support, but rather to make Support aware of any potential server issues.
A report doesn't mean an immediate investigation will take place, however if there are multiple reports in a short time period then it's a sign that something is happening and info will be passed on to Support who will handle things accordingly.
If you're on Windows 7 and experiencing an error ending in 58-58, update your security settings.