SoapHttpClientProtocol.ReadResponse - The request failed with HTTP status 401: Unauthorized

Question

I have an ASP.NET (v2.0) web application that uses a reference to a SQL Server Reporting Services 208 R2 instance (using the ReportService2010.asmx service endpoint). The web a

Answer 1

Enable authentication delegation

Using the Active Directory Users and Computers Microsoft Management Console (Start > Run > "dsa.msc"), open the properties for the ServerA server entry. Under Delegation, select Trust this computer for delegation to any service (Kerberos only).

Configure SPNs

Use the following commands to register Service Principal Names (SPNs):

setspn -S http/ServerB ReportingServicesServiceAccount
setspn -S http/ServerB.domain.com ReportingServicesServiceAccount

Where ReportingServicesServiceAccount is the service account used to run the Reporting Services service on ServerB.