Download purchased music to iTunes

I bought an album on itunes for the first time ever and it was through my phone (iphone 4s). Now I want to listen to it on the computer. But when I go to Library> purschased> and then click on the cloud-download-button it says something (in swedish) like: "could not buy xxxx. Network connection was disconnected due to a timeout. Verify that your networksettings is active and try again later". And sometimes it says "item is temporarily unavailable. Try again later."

Why does this happen? My network is perfectly active so I don't understand why it clames that. I have windows 7 and the lates version of iTunes.