User Prompted to Login when OPening Excel

Oct 25, 2013 at 8:43 PM
I build a little ASP.Net web app for internal users to access a sales report. Everything works great!...on my local machine. When I deploy this to our corporate test server, everything apears to work there as well, except, when the user runs the "Export" feature, they are given a server login prompt. The user can select "cancel" and the content will display as it is supposed to. If the user chooses to save the file, rather than open it, they can do that without any prompt. I find this very odd, since by the time the user hits my reporting site, he or she is already validated on the server.

Has anyone else seen this type of behavior? What was your solution?

Confused in Portlandia