why will iOS6 not sync with Microsoft Exchange

because you've entered a setting wrong or there's something on the Exchange end thats awry. Contact your IT department. I've had no problems whatsoever with iOS 6 and Microsoft Exchange.

@ragsdar, you need to be more specific.

I have a colleague who is getting an iPhone 5 later this week, and in preparation of that, I had him upgrade to iOS6 on his iPad3 (this happened yesterday). Today, he is reporting that his calendar information is not syncing (the server side is Microsoft Office 365 aka Exchange via MS Online).

I recently upgraded my iPad2 with iOS6, but had never checked the calendar information. Today I brought up the calendar, and at first, there were no appointments showing for the current week. After quite a long wait, a couple of them did show up, but two others never did. I checked the sync settings, and all was correct. I also tried forcing a sync several times. I'm syncing with two different Exchange sources, and both have missing appointments. Interestingly, if I create new appointments, those do seem to sync, but the missing ones (on the same day) never appear. The deletions of the new appointments do seem to sync properly.

All of the appointments, from both sources, are properly synced on my Android phone, so I know it's not an issue with either server side.

It seems to me that iOS6 might have some intermittent Active Sync problems.

Okay, here's a trick that fixed it for me (at least for now) - I went to the Exchange account settings on the iPad, and re-entered the server name (backspaced over and retyped the same server name that was there). After pressing 'Done' the iPad re-verified the settings, and when I went back to the calendar, all of the appointments synced down properly. I did this for both Exchange accounts. For the Office 365 account, I set the server to m.outlook.com which then changed to the proper server after validation.

I have the exact problem. Upgraded iPad 2 and iPod touch 4th gen to iOS 6 at same time. IPad reconnected to exchange server w/o major problems. iPod lost contacts, calendar, and exchange e-mail. Spent 5 hours on phone over past two nights with apple support w/o any resolution. Support was very nice and supportive, but in the end did nothing to help. He kept blaming my company's exchange server settings claiming that I did not have all the information set correctly. We copied the settings EXACTLY from IPAD to iPod without success. I was then able to set up my exchange account on wife's iPod touch w/o any problems. My calendar, contacts, email all synched onto her iPod fine . He had little to say about my Icompany's IT settings, and finally admitted he had no idea how to help. It is not you, it is IOS 6. Thanks Apple for a shiny paperweight that no longer can provide me with calendar, e-mail, or contacts . I wish my only complaint with iOS 6 was the map!

This is like ownging a Ford for two years, and then, aftrer changing the oil, the car starts, but the wheels no longer will turn.

GDGmacguy - don't blame the user... blame IOS 6.

@Prw629 - It does seem the issue manifests itself after an upgrade to iOS6, yet new configurations seem to work fine. Have you tried removing the Exchange account(s) from the problematic device(s) and re-adding?

I have been experiencing problems with push notifications for my Exchange accounts since upgrading to iOS 6.

Same problem here on iPad and iPhone. Seemed to work perfectly before.

Talk to your IT department if you can't get it working.

Apple fixed the Exchange issues in iOS 6.0.1.

Great suggestion; unfortunately, I am the IT department.

Great suggestion; unfortunately, I am the IT department.