We are have real problems connecting to Exchange 2010, I think there maybe a DNS or DC problem but just can't locate it.
We had exchange 2003 before this and have moved all the mail boxs over to the new one.
The old exchange server also used to have all the FSMO roles these have also been moved to the new machine.
Everthing had been working ok for a couple of months, but we did have a similar problem in the week we migrated servers. Not sure how this was resolved, seem to recall shutingdown and restarting alll the servers in different sequnces and then is started working.
Any ideas would be useful, failing that is it possible to revert back to Exchange 2003?