The Internet is rumbling with accounts of Exchange ActiveSync problems when iPhone users upgrade to iOS 6. As you should know, Microsoft Exchange ActiveSync (EAS) is the communication protocol for push email and calendaring -- it's the clever little bit developed for Exchange Server 2003 that Microsoft has licensed widely, which has allowed mobile devices such as iPhones to become staples in the enterprise because users can easily connect to their work email and calendars anywhere.
Which is all great, until there's a problem. Tony Redmond has written a good description of the current problem with iOS 6, along with the news that Microsoft and Apple are working to discover the root cause, in his blog post, "ActiveSync problems with iOS6." However, from other reports, it sounds as if these problems with ActiveSync connections and meeting hijacking stretch back well before the new iOS release....More