http://developers.de/blogs/damir_dobric/archive/2014/06/12/cannot-logon-to-manage-your-azure-sql-db.aspxWhen you try to go logon to Silverlight management Azure SQL portal you might get following error: “ Sequence contains more than one matching element” I do not know why and when this happen. But if it happen, it probably means that you did not specifyenCommunityServer 2008 SP1 (Build: 30619.63)