I recently reinstalled OS X and didnt get anythig through icloud. When i reconnected my mac to iCloud, i got this error message:

"You cant sign in right now"
"try to logging in again"
This was two days ago.
Some Websites, such as apple support communities are not accessible via safari either:
"Safari cant connect to ... because safari cant build up any safe connection to this server.
I checked date and time and switched them to automatic, but this didn't help either.
Does anyone know a solution?
Mid 2012 MacBook Pro 15"