- When the user tries to access a cloud-based archive mailbox by using Outlook Web App, the user receives the following error message: Your archive appears to be unavailable. Try to access it again in 10 seconds. If you see this error again, contact your Help Desk.
- When the user tries to access the cloud-based archive mailbox by using Microsoft Outlook, the archive mailbox may be present in his or her profile. However, the user can't update the archive mailbox.
Be aware that these steps must be completed by an Office 365 administrator. If you are a user who is experiencing this issue, contact your administrator to resolve this issue.
Step 1: Update the root certificatesTo update the root certificates, run Windows Update on the Exchange hybrid server.
For more information about how to update root certificates for a particular version of Windows or about how to use Group Policy to distribute updates, see the following Microsoft Knowledge Base article:
Step 2: Rerun the Hybrid Configuration WizardRerun the Hybrid Configuration Wizard to update the deployment and resolve the issue. For more information about how to run the Hybrid Configuration Wizard, go to the following Microsoft websites:
Article ID: 2860302 - Last Review: Dec 28, 2016 - Revision: 1