The request failed with HTTP status 401: Unauthorized

web-services http-status-code-401 .net-3.5
Matt W picture Matt W · Jul 19, 2010 · Viewed 62.3k times · Source

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

btlog picture btlog · Jul 19, 2010

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.

Related questions

Calling webservice in C# using SSL - '(401) Unauthorized'

I'm calling a method on a web service from behind a proxy server using the following code: myWebService.TestWebService webservice = new myWebService.TestWebService(); webservice.Url = "http://test.com/webservice?wsdl"; WebProxy proxy = new WebProxy("1.2.3.4", 8080); proxy.Credentials = new NetworkCredential("username", "password"); …

Read More
SOAP vs REST (differences)

I have read articles about the differences between SOAP and REST as a web service communication protocol, but I think that the biggest advantages for REST over SOAP are: REST is more dynamic, no need to create and update UDDI(…

Read More
HTTP POST and GET using cURL in Linux

I have a server application written in ASP.NET on Windows that provides a web service. How can I call the web service in Linux with cURL?

Read More