Comments on: The data connection uses Windows Authentication and user credentials could not be delegated

By: Delegation, Claims, Active Directory….Again?! Frak! « Denny Lee

Delegation, Claims, Active Directory….Again?! Frak! « Denny Lee — Sun, 23 May 2010 05:28:13 +0000

[...] May 23, 2010 by dennyglee As you may have noted in my original posting Delegation, Claims, Active Directory…Oh My!…Aw Crap!, it quickly described how to solve issues surrounding the delegation of the claims token within an Active Directory environment. In it I referenced Lee Graber’s excellent posting: The data connection uses Windows Authentication and user credentials could not be delegated. [...]

By: Lee

Lee — Mon, 19 Apr 2010 15:20:23 +0000

Hi James,
If you have a BETA version of MOSS, this service might not have been added to the list of “managed services” in your SharePoint farm. We actually requested that it be part of the list to make overall management easier. In the RTM or CTP builds, it will show up in their list of services as “Claims to Windows Token Service”. The link Dave provided contains steps specific to their BETA builds where you have to alter the config file and use SCM directly for starting c2wts. Those steps should not be needed when you upgrade to CTP or RTM builds. Hope that clarifies and sorry for the confusion.

Lee

By: powerpivotgeek

powerpivotgeek — Sun, 18 Apr 2010 03:50:47 +0000

Hi James. If c2wts is set to manual, it is likely that you didn’t follow the installation steps properly. Check out http://powerpivotgeek.com/server-installation/existing-farm-install/ (step 16) for existing farms. It talks about tailoring c2wts. Or did you do a “New Farm” installation? For “New Farm” we should have changed it for you.

Hope that helps.

By: James Dawson

James Dawson — Fri, 16 Apr 2010 17:13:40 +0000

I’m experiencing this issue (on our beta installation), and indeed the ‘c2wts’ service wasn’t running in SCM (set to manual), however, I can’t find any reference to it in ‘Manage Services on Servers’ – at least none under a name that I’m expecting. Am I missing something?

I do have a ‘Security Token Service Application’ showing as started under ‘Service Applications’, is this related?

Cheers,
James.

By: powerpivotgeek

powerpivotgeek — Tue, 23 Mar 2010 03:33:16 +0000

Check to see if the c2wts (Claims To Windows Token Service) is running. There is a known problem with it not starting properly after a reboot. To troubleshoot, if it is not running, then start it by-hand and see if that solves the problem. If so, we talk about a more permanent solution.

By: PG Gupta

PG Gupta — Mon, 22 Mar 2010 22:46:30 +0000

I am also facing the same issue.

I have a multi-server farm deployment.

One WFE, One App Server for Excel Services along with Power Pivot Service, One app service for PPS service and Secure Store service and one is DB server.

Everywhere i used only one account for installation, configuration and setup using windows authentication. I have not used kerberos authentication. And this account is present in administrators group of each machine.

Now i have successfully created a PowerPivot workbook by accessing data from AdventureWorks present in SQL Server DB. After creating report in Excel, I stored it in PowerPivot library of Business Intelligence Portal. Only first time i could see the thumbnail of the report but later i couldnt see it.

I can see the workbook in browser but when i click on any slicers..I am also getting the same error as mentioned in this article

The data connection uses Windows Authentication and Excel Services is unable to delegate user credentials

Any idea what steps should i take to resolve this error.