The root cause of the Zendesk Talk incident on March 5, 2024, was identified as a local ISP issue affecting some customers in the US. Although a recent Talk change was initially rolled back, the ISP outage was more accurately aligned with the impact window.
On March 5, 2024, Zendesk Talk experienced connectivity issues from 19:50 UTC to 22:06 UTC, affecting some customers' ability to make, receive, or transfer calls. The issue was investigated and resolved by rolling back a recent change and…
Zendesk resolved the Talk connectivity issues by rolling back a recent change and monitoring the system's performance. The issue was primarily due to a local ISP outage in the US. The functionality was fully restored by March 6, 10:59 UTC,…
To prevent future Talk connectivity issues, Zendesk plans to improve monitoring and alerting around outbound call failures, work with providers to adjust alert thresholds, and enhance troubleshooting runbooks for better scope assessment.
The post-mortem for the Zendesk Talk incident on March 5, 2024, was published on March 14, 2024. It provides a detailed analysis of the incident, including the root cause and resolution steps.