If I use AdomdConnection or Visual Studio and change the user when I'm
browsing a cube (or set the EffectiveUser property in my Adomd connection
string), I get the error:

The following system error occurred: A device attached to the system is not
functioning. .


I can see from SQL Profiler that the same user is listed in the NTUserName
field. This in particular example the current user and the effective user
names are the same.

Any clues where to look next?

More info: The stack trace is (when running inside Management Studio):

at
Microsoft.AnalysisServices.AdomdClient.AdomdConnec tion.XmlaClientProvider.Mi
crosoft.AnalysisServices.AdomdClient.AdomdConnecti on.IXmlaClientProviderEx.C
reateSession(Boolean sendNamespaceCompatibility)
at
Microsoft.AnalysisServices.AdomdClient.AdomdConnec tion.ConnectToXMLA(Boolean
createSession, Boolean isHTTP)
at Microsoft.AnalysisServices.AdomdClient.AdomdConnec tion.Open()
at Microsoft.AnalysisServices.Browse.ConnectionsManag erBase.Connect()
at
Microsoft.AnalysisServices.Browse.CubeBrowser.Conn ectionsManager.Connect()
at Microsoft.AnalysisServices.Browse.CubeBrowser..cto r(String nameOfCube,
Object cube, IServiceProvider iserviceProvider, DesignerPageRelevantData
designerPageRelevantData, UserContextData securityContextData)
at
Microsoft.AnalysisServices.Browse.CubeBrowserHostC ontrol.CreateBrowser()
at Microsoft.AnalysisServices.Browse.BrowserHostContr ol.LoadBrowser()




On 12/20/06 3:49 PM, in article C1AF0BF0.414C%zgrose (AT) mac (DOT) com, "Zoltan Grose"
<zgrose (AT) mac (DOT) com> wrote:

According to MS tech support, EffectiveUserName will only work if you have a
real domain, not just a Workgroup. Inconvenient but at least that explains
the issue.


On 12/21/06 9:04 AM, in article C1AFFE9C.41C5%zgrose (AT) mac (DOT) com, "Zoltan Grose"
<zgrose (AT) mac (DOT) com> wrote: