For my test, I have two different machines with Windows 7. On both machines is IIS 7 installed and activated. I have configured both machines like the other and on both machines I load the same project. The whole project runs nice on both machines, but the UpdatePanel don't work in one machine.
Are there any settings for the AJAX-function in the IIS 7? Have I to add tags to the Web.config file?
Ask if anything isn't clear.