Central Authentication Service Outage on Feb. 28, 2021 4:57 PM to 8:35 PM

CCS began receiving alerts just before 5 PM on Feb 28, 2021 that Ryerson’s Central Authentication Service (CAS) was not allowing people to log in. As a result no one could log into D2L, eHR, RAMSS, Google Workspace, and other systems via CAS. Existing sessions on these systems were not affected. The problem was traced to an unresponsive third party system that our resource management system uses to send text messages during the account set up process. The problem was resolved at approximately 8:40 PM.

Please accept our apologies for the problems the outage caused. CCS is looking into ways to make CAS more resilient should the problem with the messaging provider occur again.

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