I am migrating an SBS 2011 Exchange server (2010) to Exchange 2013 on a W2012 Server (not a DC). I completed the install and moved one user's mailbox to the 2013 server. All users can process their email via OWA and Outlook. But, if the SBS 2011 server is disconnected, the migrated user cannot log on via OWA and I can't log in to administrator ecp. They just time out. I know the mailbox is migrated because if I disconnect the 2013 server and OWA into the SBS 2011 server it gets an error saying the mailbox server is unavailable. I must have missed a step in the migration. Can someone please point me at some documentation for completing the migration.
Thank,
Lou
Louyo