Hi,
Running a fairly straight forward setup
Clients = Outlook 2013
Legacy Exchange = 2010 UM SP3 RU4
Exchange = 2013 UM CU3
They're currently in a coexisting state
Have configured autodiscover, Outlook Anywhere etc.
Re-issued a cert with the same common name and included both legacy and new exchange servers
Split DNS
The issue that I have is after I have migrated a user from 2010 to 2013 they get prompted for credentials opening their outlook client and once they authenticate it states that it can't connect to exchange.
Checking their mail profile settings and I note that it still points to the 2010 FQDN
If I disable the Exchange RPC service on 2010 (effectively stopping any 2010 users from working) then the newly migrated user can open outlook fine (still gets an authentication prompt to which they must authenticate). Checking their mail profile their after shows a series of numbers @ domain etc which is expected.
If it is a first logon user or you repair the profile the path updates too and Outlook works as expected.
Any thoughts?