Hello,
thanks for the reply.
I have already checked the wp-config file and changed localhost for DBname.db.1and1.com (it’s this adresse with 1and1), and the database is marked as ready in 1and1 control panel.
I have already sent them a message but still waiting the reply… lot of people have this problem with 1and1 so I ll post the solutino when I ll get it.
