Getting 401 unauthorized error

Prasanna PG

19y16.2k

Hi

Am very new to webservices.. I was trying to consume a simple we service in my console application. Whie trying to invoke web method, i have written i am getting "401 unauthorised exception.. what is the work around for this? Any help will be much appreciated.. I have copied my code down

Thanks in advance

Prasanna

web service :

[WebMethod]

public int add(int i, int j)

{

return i+j;

}

Console app :

[STAThread]

static void Main(string[] args)

{

try

{

localhost1.Service1 sr = new localhost1.Service1();

int i = sr.add(3,4);

Console.WriteLine(i);

Console.ReadLine();

}

catch (Exception ex)

{

ex.ToString();

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Mahesh Chand19y ago
Here is an article on it:

http://www.c-sharpcorner.com/UploadFile/mahesh/40107282006095201AM/401.aspx
0
Munir Shaikh19y ago
You may receive an "HTTP 401 Unauthorized" error message when you use SOAP over HTTP and Visual C# .NET XML Web services on a computer that is running Windows XP or Windows Server 2003

SYMPTOMS

When you use SOAP over HTTP and Visual C# .NET XML Web services on a computer that is running Microsoft Windows XP or Microsoft Windows Server 2003, you may intermittently receive an error message that is similar to the following:

System.Net.WebException: The request failed with HTTP status 401: Unauthorized.

This problem occurs when a Web service uses Integrated Windows authentication, and the client passes the appropriate credentials correctly.

Additionally, this problem may occur more frequently when multiple threads on the client try to connect to the network at the same time.

For HotFix check this URL
http://support.microsoft.com/contactus/?ws=support

Enjoy!!

>>Munnamax
0

Getting 401 unauthorized error

SYMPTOMS