RESOLVED: Office 365 Authentication Issues

Tuesday, January 10th, 2017

Posted in Exchange, General News, Incidents

Incident Discovery Time: 08:22am on 01/10/2017 Time of Resolution: 04:50pm on 01/11/2017 Services Impacted: E-mail – Exchange

Description of Impact

Clients were experiencing intermittent authentication issues with Office 365.

Incident Description and Resolution

IS&T teams and the vendor have resolved the incident. In consultation with the vendor, a server was rebooted shortly after 5 p.m. on January 10 in an effort to expedite service restoration. There were some additional reports of problems on the morning of January 11, which were determined to be associated with stale information being cached at the mail client or device level.

Additional Information

The underlying cause of this incident was a problem with the vendor’s network access system services on the morning of January 10. If you continue to have issues, please contact the IT Help Center.