Skip to content


SQL 2008 SSRS Web Service access from .NET

When you try to access a report server web service to execute code you get an error similar to, where the scheme or header varies a tiny bit

The HTTP request is unauthorized with client authentication scheme ‘Basic’. The authentication header received from the server was ‘Negotiate,NTLM

Basically my situation is that we have a MS 2008 Server running SSRS outside of our domain in the DMZ. However we need to execute code on a domain machine that will connect and run over 100 reports on the SSRS Server, then dump them on a share in our domain in excel format.

To get around the negotiation problem you need to make sure the SSRS server is allowing connections configured using basic authentication

Find the file

rsreportserver.config

This is usually buried in the install folder

C:\Program Files\Microsoft SQL Server\MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer

Then change the authentication to support your desired connection authentication type

More info at MSDN
Once you have done that you should be good to connect.
Here is some sample code to get you started with connecting to your web service and pulling back a list of items

Posted in .NET, Annoyances, Configuration, SQL.


0 Responses

Stay in touch with the conversation, subscribe to the RSS feed for comments on this post.



Some HTML is OK

or, reply to this post via trackback.