YA25024 | Service Restored | Unable to sign in to Yammer | 6/18/2015 02:31 AM UTC

Final Status: Engineers confirmed that a network device experienced a temporary failure. Engineers took corrective actions to restart the affected network device, which restored service.

User Experience: Affected users may have been unable to sign in to Yammer.

Customer Impact: Customer impact appeared to be limited during this event.

Incident Start Time: Thursday, June 18, 2015, at 1:05 AM UTC

Incident End Time: Thursday, June 18, 2015, at 1:15 AM UTC

Preliminary Root Cause: A network device became temporarily degraded. The underlying root cause is still under investigation.

Next Steps: The following is a list of known action item(s) associated with this incident. As part of the Office 365 problem management process, additional engineering actions may be identified to improve the overall service.
– Action: Identify the underlying root cause and develop a solution to prevent reoccurrences.

Please consider this service notification the final update on the event.

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