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Exchange calendar not syncing after iOS 9 update

I am using google Apps for business (no two steps authentication) and Exchange calendar stops syncing after iOS 9 update (now running on iOS 9.0.1) . It is happening both on iPad and iPhone and started after the update.

I have already tried resetting both devices (and set up as new device without restoring from iCloud backups), it works for a few hours and then it stops again. The temporary solutions of either disabling the calendar sync and re-enable it or deleting the Exchange account and setting it up again, works for only a few hours.

Does anyone else experiencing the same problem?

iPhone 6, iOS 9.0.1

Posted on Sep 24, 2015 1:43 PM

68 replies

Feb 12, 2016 2:40 AM in response to kentfromlouisville

Thank you for everything!!

Feb 17, 2016 11:04 PM in response to turbocharged

This worked... as soon as I unclicked 'events found in mail' my calendar synced ok.

Apr 10, 2016 12:45 AM in response to turbocharged

YEs, this worked straight away. Thanks for the tip!

May 3, 2016 3:14 PM in response to turbocharged

If you have recently, or recently been asked to update your password in Exchange, be sure you also update the password on your device, Settings/Mail, Contacts, Calendars/Accounts/Exchange/Account/Password. Once I did that, the calendars sync'ed.

May 12, 2016 6:47 AM in response to turbocharged

This is a bug in iOS 9 - I just bought an iOS 9 device and have this problem, while my older iOS 8 device (which I had thankfully not upgraded to iOS 9 works just fine - all else unchanged.

Apple - we need a quick fix. At risk are all those pretty iOS fragementaion diagrams that you love to flaunt at conferences.

Aug 3, 2016 2:12 PM in response to turbocharged

My issue is couple of my admin is using iphone 6 with 9.3.3 has no problem synching but when you move an event on a "PC" 3 times and the 3rd time it won't synch on the iphone.Sometimes there secretaries need to do changes constantly and the iphone wont update the recent chances so they end missing a meeting (they are ****).If they do the changes from iphone or ipad from the secretarys device then it seems to be working fine.But our company is too big and I can't give them this solution where they rely heavily on their pc..any suggestions?

Aug 3, 2016 2:14 PM in response to Floodzone7

Also..I tried wiping out..deleting the outlook account, restart, remove device from the outlook settings before adding the outlook account on the iphone, turning off icloud sync.

Oct 17, 2016 4:12 AM in response to Spekky

Hi Speeky,

Did you solve this and how? I have exactly the same issue.

Exchange calendar not syncing after iOS 9 update