12Twenty experienced a minor incident on April 1, 2021 affecting SSO v2, lasting 1m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Apr 01, 2021, 10:28 PM UTC
See https://status.azure.com/en-us/status for more info SUMMARY OF IMPACT: Starting at approximately 21:30 UTC on 01 Apr 2021, a subset of customers may experience intermittent issues accessing Microsoft services, including Azure, Dynamics, and Xbox Live. CURRENT STATUS: Microsoft engineering teams have been engaged and are currently investigating a potential underlying DNS issue. The next update will be provided in 60 minutes or as events warrant.
- resolved Apr 02, 2021, 12:56 AM UTC
From Microsoft: DNS issue impacting multiple Microsoft services - Mitigated (Tracking ID GVY5-TZZ) Summary of Impact: Between approximately 21:30 UTC and 22:30 UTC on 01 Apr 2021, customers may have experienced intermittent issues accessing Microsoft services, including Azure, Dynamics, and Xbox Live. Preliminary Root Cause: We are continuing to investigate the underlying cause for the DNS outage but we have observed that Microsoft DNS servers saw a spike in DNS traffic. Mitigation: Microsoft engaged resilient DNS capabilities to absorb the spike in DNS traffic. Next Steps: We apologize for the impact caused by this outage. We are continuing to investigate to establish the full root cause. Stay informed about Azure service issues by creating custom service health alerts: https://aka.ms/ash-videos for video tutorials and https://aka.ms/ash-alerts for how-to documentation.