The Network Administrator

So after we had Exchange 2010 installed, and verifying all activeSync settings were correct. I kept getting cannot connect to server when setting up ActiveSync on my iPhone…This is was solved the issue…

This issue occurs if the AD user object of the Exchange 2010 user doesn’t have “Allow inheritable permissions from the parent to propagate to this object and all child objects. Include these with entries explicitly defined here.”

Once this setting is checked, Exchange ActiveSync works again.