Article Date July 19, 2021 Scheduled maintenance was performed on the Student Information System (SIS) over the weekend. Clear your browser cache before logging in. Find out how to clear your cache. To login to the system, visit case.edu/sis. For assistance with any technology product or service at Case Western Reserve University, contact the University Technology Service Desk at email@example.com, 216.368.HELP (4357) or visit help.case.edu.