I get this error when trying to create a ringtone - iTunes could not connec

I get this error when trying to create a ringtone:

"iTunes could not connect to the iTunes Store - an unknown error occurred (11556)"

But I CAN connect - if I click on the iTunes Store, it connects right away.

I want to make a ringtone from a song that I purchased, but all I get is the same error message.

iTunes 9.2.2, Ireland iTunes Store.