The page you are looking for — uwmad.courses.wisconsin.edu – is no longer in use. Desire2Learn (D2L) was permanently discontinued at UW-Madison on June 1, 2018. As a result, users are no longer able to access the system.
UW-Madison has transitioned to the Canvas learning management system. If you are an instructor, the Learn@UW-Madison team provides information on this site about how Canvas and other tools within the Learn@UW suite of tools can be used for teaching and learning.