How about when running in IIS? It seems that the Dashboard will only work when using Forms Authentication.
Unfortunately the reports doesn't support Windows Authentication now.
However, please note that there is a way to use special links that include username and password and give it to users, so they will be able to access reports without need to enter username and password manually. For example: http://127.0.0.1:9991/Login.aspx?username=user&password=pwdhttp://127.0.0.1:9991/Login.aspx?ReturnUrl=/Report.aspx?id=1&username=user&password=pwd
However, please note that there is a way to use special links that include username and password and give it to users, so they will be able to access reports without need to enter username and password manually. For example:
http://127.0.0.1:9991/Login.aspx?username=user&password=pwdhttp://127.0.0.1:9991/Login.aspx?ReturnUrl=/Report.aspx?id=1&username=user&password=pwd