MSC-ERR-0008 An error has occurred at the transport layer and OP-ERR-0181 At least one invalid member – Cognos and SSAS errors

A client has found a solution to two errors occurring in an environment with Cognos 10.1 and SQL Server 2008.

• MSC-ERR-008 An error as occurred at the transport layer.
• OP-ERR-0181 At least one invalid member reference was encountered in the query.

A hot-fix was applied to Windows as described in these two following articles and initial testing has been positive. The scenario is a single sign-on Cognos environment with Active Directory using Kerberos to authenticate to SQL Server Analysis Services 2008. The errors seemed intermittent.

http://blogs.msdn.com/b/psssql/archive/2009/04/03/errors-may-occur-after-configuring-analysis-services-to-use-kerberos-authentication-on-advanced-encryption-standard-aware-operating-systems.aspx

http://support.microsoft.com/kb/969083