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Resolves an issue in which Exchange Online mailboxes cannot be managed in Exchange Administration Center after installing Exchange Server 2013 Cumulative Update 6.

• After you install Microsoft Exchange Server 2013 Cumulative Update 6, the Hybrid node in Exchange Admin Center (EAC) no longer functions correctly. This prevents administrators from being able to administer Exchange Online Mailboxes from an On-Premises server.

Files

Status: Live This download is still available on microsoft.com. The downloads below will come directly from the Microsoft Download Center.

File	Size
Exchange2013-KB2997355-FixIt.zip SHA1: 2b98e2f132e8d99b4081e3e91a31321a9c4c7073	1 KB

File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

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  Exchange Server 2013 Cumulative Update 6 System Requirements and Prerequisites
  For information about Exchange 2013 system requirements and prerequisites, see the following topics:
  • Exchange 2013 System Requirements
  • Exchange 2013 Prerequisites
  
  

• Microsoft has developed a PowerShell script that corrects a settings error in the Exchange Administration Center configuration files built into Exchange Server 2013. To restore correct functionality, execute the provided script on a server that experiences the symptoms that are mentioned in the “Details” section.