Hi All,
This is the design I have:
Site A: Exchange 2013 with 1 CAS and 1 Mailbox
Site B: Exchange 2007 with 1 HUB/CAS and a MBX Cluster
Site C: same as Site B
Exchange 2013 is CU 5
From outlook, if I change the selected e-mail it takes at least 3 second to display the content in the preview pane, if I send sometimes outlook freezes and the email is sent after a while (can be 2 from 15 seconds)
The site A is a new site which will take over site B and C, i've got 1 DC in there at the moment and to open ADUC it takes really a long time.
I did all the connectivity and DNS tests and the result for everything is just "passed".
Same behaviour for the connectivity test within exchange 2013.
The RPC diag in outlook shows connected and a response time between 100 and 120ms.
The event viewer of all exchange server is clean.
This is not happening using owa and the users who are on 2007 are not experiencing this problem.
Any idea?
Thanks!