Issue:
During a migration to Office 365, a user’s computer connects to the local Exchange Server when configuring an Outlook profile instead of connecting to the Office 365 server.
Cause:
The AutoDiscover Service is running in the local Exchange environment, causing the clients to connect locally.
Fix:
To repair this issue, perform the following:
- Log into your local Exchange Server as an Administrator
- Open the Exchange Management Shell as administrator
- Enter the command Get-ClientAccessServer and press enter. Make note of the returned value
- Enter the command Set-ClientAccessServer -Identity “VALUE” -AutoDiscoverServiceInternalUri $NULL (Replace VALUE with the CAS server noted in step 3)
- Open the Services Console and locate the Microsoft Exchange Transport Service and restart the service
- Open the DNS Management Console and be sure that there are no CName Records for Autodiscover.DomainName.com , or point the record to AutoDiscover.Outlook.com
-AutoDiscoverServiceInternalUri – is not recognized by Exchange 2010 Management shell