Exchange server is a perfect way to sync Outlook data but what to do if it’s not working? It could be the Exchange server misconfiguration as well as smartphone configuration issues.
So let us start from general issues and move to more specific problems preventing i Phone from syncing with Exchange.
Although you calendar will automatically request an update from the Timetastic feed, the timescales can be somewhat unclear and occasionally calendars seem to stop updating or have large delays - we've seen as much as 1-2 days.
I wish we could provide something more concrete on this subject, but it's the one area that seems to crop up occasionally and is both hugely very frustrating (for both you and us) yet there is little we can do.
We have not directly confirmed this yet, but 3rd-party documentation indicates that Outlook for Windows observes the non-standard setting in an i Cal feed to set automatic update frequency.
Stellar and LMOD i Cal feeds do not currently set this value, which means updates may be limited to when Outlook performs a Send & Receive operation.
Note that unlike your desktop Apple Calendar, on i OS the setting applies to all calendar subscriptions that are set to Fetch.
Calendar updates will happen in the background, and for large calendars frequent updates can cause your battery to drain faster.
Keep that in mind when you select an update frequency.
If you’re having problems with Exchange calendar on your i Phone, the easiest way to pinpoint the problem is to connect your Exchange Server with another smartphone and attempt to sync the same data as you are trying to sync on i Phone.
If the other smartphone works better, the problem is with your i Phone.