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Web Service "HTTP Status 401" -> "HTTP Status 404" issue

7 New Member
I've been banging my head against the wall with this one for a couple days so I'm hoping someone has some ideas. I have a web service that I created that is called by a .NET class library (which in turn is called by another application). This all works fine in my development environment.

Test environment: Windows Server 2003, ASP 6.0, .NET 2.0, Anonymous authentication is enabled. All components (web service, DLL, and calling application) are all on the same server.

I first got the error "The request failed with HTTP status 401: Unauthorized." After some research I added...

< authentication mode="Windows" / >
< identity impersonate="tr ue" / >

... to the web.config file for the web service and ...

iService.PreAut henticate = true;
iService.Creden tials = System.Net.Cred entialCache.Def aultCredentials ;

... to the class library code before the call to the web service.

After making that change, now I'm getting the error "The request failed with HTTP status 404: ." (no detail after the colon)

The web service works fine from the browser, it's only returning this error when called through the class library. I've tried a few things...

- Removed the virtual directory and recreated it
- Granted the IUSR and ASPNET accounts administrator priviledges to the virtual directory
- Added this code to the web.config file for the web service...

< defaultProxy >
< proxy usesystemdefaul t="false" / >
< / defaultProxy >

- Added this code to the class library before the web service call...

IWebProxy proxyObject = new WebProxy("http://testserver:8080 ", true);
iService.Proxy = proxyObject;

None of those changes resolved the issue, I still get the same error. (Note: From the same class library, I'm calling a couple other web services that reside on a different server and those calls are successful.)
Jul 18 '07
11 8351
7 New Member
Okay, thanks for the help. I'll check it out.
Jul 20 '07 #11
145 New Member

Can you post the code which took care of issue(s)?
Sep 22 '09 #12

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