If you get this message say from Visual Studio when trying to deploy SSRS reports to a SQL Server 2008 database instance, heres how this can be resolved. This is usually caused by kerberos security authentication. Navigate to: C:Program FilesMicrosoft SQL ServerMSRS10.MSSQLSERVERReporting ServicesReportServer Edit the file rsreportserver.config
Make the change below:
<!–<Add Key=”SecureConnectionLevel” Value=”2″/>–>
<Add Key=“SecureConnectionLevel“ Value=“0“/>
Restart Reportserver. You should be able to deploy your reports now to SQL Server Reporting Services 2008.