We just finished migrating from Exchange 2007 to 2013. All users were migrated and working normally. Public Folders were still on 2007. We used the instructions found in the URL below to migrate the Public Folders. No errors during migration. Once we got to the part about trying the test user it failed. We couldn't find any way to go back and users are unable to view the public folders. Error in Outlook states "Cannot expand the folder. The attempt to logon to Microsoft Exchange has failed."
Any assistance would be greatly appreciated as we are a rural hospital and rely on these folders.