Microsoft has discontinued the old Azure Devtools for Teaching Program. Students now need to sign up for Azure for Students (see link below):

 https://azure.microsoft.com/free/students

and use their PSU email address to verify their status when registering. The new offering is supposed to contain many (but not all) of the previously available software downloads (in addition to some Azure cloud credits). For the software list, go to this link if you have already set up your account:

https://portal.azure.com/#view/Microsoft_Azure_Education/EducationMenuBlade/~/software

The CAT is no longer involved in the subscription to this program.