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.https://status.azure.com/en-us/status/history/