Web Service Authentication Problem



Hi all.

Since a couple of days I'm experiencing a very strange problem with our
company intranet, which has kept running since at least five years.

We have different applications calling a web service located on the same web
server as the applications themselves.
On the whole web site basic and anonymous authentication are disabled, while
integrated windows authentication is enabled.
To authenticate on the web service I use "proxy.Credentials =

Everything worked fine until a couple of days ago, when our system
administrator installed about 40 patches on the server (security and other).
Since then, when an application tries to call a method on the web service I
get following error message:

"[WebException: The request failed with HTTP status 401: Unauthorized.]
message, WebResponse response, Stream responseStream, Boolean asyncCall)
methodName, Object[] parameters) +218
proxy.GetObjectID() +34
ASP.CAbsList.Page_Load(Object Sender, EventArgs E) in
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750"

Can anyone help me solve this problem?
Any hint would be quite appreciated, since we can not remove the installed

Thanks in advance,


Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question