Outage category: VPN
Location: All Campuses
Status: Closed
Resolved Alert:
Initial Symptoms
During the initial VPN authentication, users did not receive DUO push to continue with the authentication process.
Root Cause Analysis
Cause
DUO proxy servers failed to bind with Active Directory, after a security policy rollout to increase the security for AD and client communications.
Resolution
The change was reverted. We are looking into alternatives to implement this Microsoft recommendation.
Prevention
Schedule this type of changes during midnight hours or Sunday maintenance windows with a test plan in place.