We have a webscraper ASP.Net application, that worked fine on developers and test environments, but didn’t work on some machines with more strict security settings. HttpWebRequest failed with System.Net.WebException: Unable to connect to the remote server
It start working when my colleague added the site that application tried to access to his “Trusted Sites” zone using Internet Explorer. What we couldn’t understand, how it affected an application that ran under DIFFERENT account.
I didn’t find any references that Internet explorer security settings are shared between users.
The server affected had Windows 2003 Server and Internet Explorer 8.