Current Status: Engineers are in the process of restoring the network connection between Yammer and the Azure storage in order to mitigate impact.
User Experience: Affected users may be receiving intermittent errors when attempting to upload or preview files on Yammer.com. As a workaround, users are encouraged to make additional attempts to upload or preview files as subsequent requests may be successful due to the intermittent nature of the issue.
Customer Impact: Customer impact appears to be limited at this time.
Incident Start Time: Wednesday, June 3, 2015, at 1:20 PM UTC
Preliminary Root Cause: A network connectivity issue occurred between Yammer and Azure storage that stores the uploaded files. The underlying root cause is under investigation.
Next Update by: Thursday, June 4, 2015, at 12:00 AM UTC