Hello,
We have a third party Word 2010 add-in (.NET4) that uses a web service hosted on IIS7. Windows authentication is used to authorize user access.
The web service works fine from the browser – we are prompted to login and once done we can access the web methods and WSDL pages.
The Word add-in client application also works fine from my home computer, not enrolled on a domain, however from all the work machines it just fails (401.2 - 5). The Connect to… dialog, prompting for credentials, is displayed but login always fails.
We do not have the code for the applications, we do however have access to the server hosting the service.
Any ideas of what could be causing this to occur?
Leo