The request failed with HTTP status 401: Unauthorized

Question

I have a .NET 2.0 website (VB) running in my IIS6 (XP Pro SP2) and a .NET 3.5 (configured as .NET2 under IIS's ASP.NET tab, of course) hosting an ASMX web service.

In Chrome, I can call the ASMX and invoke the web methods successfully. However, in calling the web methods in code, from the .NET 2.0 website I get:

The request failed with HTTP status 401: Unauthorized.

How do I get around this?

Answer 1

You need to set the credentials in you application when you initialise the webService object.

Something like webService.UseDefaultCredentials = true

This will set the credentials of the request to the current user executing the application.

Answer 2

you can use this:

webservice.UseDefaultCredentials = true;

if does not work, use the below code instead of the code above

webservice.Credentials = new NetworkCredential("userName", "password", "domain");
webservice.PreAuthenticate = true;

note: the username Password and domain is the user credential of the user that access to webservice

so make sure that user have permission to access to web service

maybe the user is the windows user

and you can get the domain from: right click in "MyComputer" and properties the domain is the Computer name or Workgroup

Answer 3

In IIS 7, enable anonymous authentication and you should be able to debug.

Answer 4

webService.UseDefaultCredentials = true

This worked for me.

Answer 5

im am test this way:

CheckListService.CheckList chkSrvice = new CheckListService.CheckList() {
    UseDefaultCredentials = true };