Hello,
Environment: existing exchange 2010 org, with new Exchange 2013 introduced. Clients are Outlook 2013. Clients can connect to all mailbox on the 2010 Server, also can connect to new mailboxes on the 2013 Server. But if I move an existing mailbox from the 2010 Server to the 2013 server Outlook cannot connect anymore, because autodiscover fails. Both servers use the same autodiscover settings, SCP contains the same URL.
TIA
Update: I've just installed an Outlook 2010 for testing purposes and it is working! From this point it may be rather a client side problem than a server side...