Resolved Alert:

DUO 2FA authentication services have been restored. Login to applications using DUO (eg. Patriot Web, CAS enabled applications, VPN) are now working. We apologize for the inconvenience.

If you have any questions or concerns, please contact the ITS Support Center at 703-993-8870 or via email at support@gmu.edu.

Initial Alert:

Duo Security, Mason’s provider of Two-Factor Authentication (2FA), is currently experiencing a service outage causing intermittent authentication issues. This affects all Mason services that require 2FA including websites/applications protected by Mason‚Äôs Central Authentication Service (CAS) and the Virtual Private Network (VPN). ITS is working with Duo to investigate the cause of this outage and correct the issue.

Impact on users: Access to the following services requiring 2FA may be unavailable:

• Patriot Web and Banner-related applications
• Central Authentication Services (CAS) includes applications such as Travel and Libraries
• Cisco AnyConnect Virtual Private Network (VPN) access to certain Mason resources from off-campus or wireless locations

If you have any questions or concerns, please contact the ITS Support Center at 703-993-8870, or via email at support@gmu.edu.