Deployed web app to dedicated server running IIS7. The app targets the .NET Framework 2.0. The first form is a login form and upon successful login a search form should appear.

I have 2 machines running IE 11. When I'm logging in on one of the Windows 8.1 computers, the search screen appears. On the other, after login, the search screen does not appear nor any error. Same when using an iPad.

Both machines work under Chrome and FireFox.

I know this is not a lot of detail, but does anyone have any input on this type of issue?