Credentials being lost between servers - out of ideas!

From: Jason Wood (Wood_at_discussions.microsoft.com)
Date: 09/20/04 

Date: Mon, 20 Sep 2004 10:21:04 -0700

I have read everything I can find on this and I can't figure out what is
failing.

I have a webservice in production that is working great. It uses windows
authentication and is ssl-encrypted.

I have a web app that works when it is on the same server as the web
service. However, when I am running it from my local machine, it fails in the
call to the web service. Of course, this is where I intend to test from, so I
really want to get it working.

I have my app set up to impersonate, using windows authentication, and I
disallow anonymous access. I have established that the request is going
direct to the production server, not out to our proxy/firewall.

I establish credentials with this code:

        RebuildCodes.Credentials =
System.Net.CredentialCache.DefaultCredentials

The specific error message I get is

Server was unable to process request. --> Login failed for user '\'.

And the trace looks like this:

[SoapException: Server was unable to process request. --> Login failed for
user '\'.]
   
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
   System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
methodName, Object[] parameters)
   PayrollWebApps.com.kenonic.webkc.Service1.RebuildShiftOTCodes() in
c:\inetpub\wwwroot\PayrollWebApps\Web
References\com.kenonic.webkc\Reference.vb:42
   PayrollWebApps.WebForm1.Button1_Click(Object sender, EventArgs e) in
c:\inetpub\wwwroot\PayrollWebApps\WebForm1.aspx.vb:35
   System.Web.UI.WebControls.Button.OnClick(EventArgs e)
   
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
sourceControl, String eventArgument)
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
   System.Web.UI.Page.ProcessRequestMain()

I also tried running this from a windows app, to rule out my web.config file
and my IIS settings as possible factors. The same error message is received.
 
Most similar errors I have seen on support sites report the user as (null)
or the anonymous account. Can anybody help me figure out why my credentials
are being passed as '\'? Incidentally, the special character \ can not be
google'd, so it may have affected others but I can't find them.

Thanks,
Jason Wood.

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