Exchange calendar not syncing after iOS 9 update

I have the same issue but we are using Exchange 2013. When using the OWA app or webmail the calendar is empty on iphones since the iOS9 update. Mail and calendars are fine. I've tried re-setting it up and the calendar remains empty. I've confirmed it is still working on devices that did not run the update.

I have the same issue but we are using Exchange 2013. When using the OWA app or webmail the calendar is empty on iphones since the iOS9 update. Mail and contacts are fine. I've tried re-setting it up and the calendar remains empty. I've confirmed it is still working on devices that did not run the update.

I have the same problem with my iPhone 6. In settings > mail,contacts,calendars, locate your Exchange account.

Once in the Exchange, toggle the switch for calendar only to off. Reboot the phone. Once I did this, the calendar repopulated and is working to accept entries in both directions (phone to google and google to phone).

CAUTION: Any entries you made in your iPhone since the upgrade, that did not transfer to gmail, will be wiped out.

Hi Troy1954

did you manage the find a fix for this? I am seeing the same issue and have temporarily swapped the clients to the outlook app.

I am a couple of CU's behind on exchange and was thinking this might help.

thanks

Russ

I was having the same problem and tried your solution. So far....seems to be working. I think you nailed it!

Nope after several hours it stopped again. Turning calendar off and on seems to give you a slight reprieve but then it comes back.

Seeing it on IOS 9, 9.01 and 9.1 beta 2 on a variety of iphones hitting activesync with Google Apps.

Best way to recreate is to create a calendar item on your gmail calendar and it should almost immediately appear on your iphone calendar. But once affected it will not. If you use the Google Calendar app it does immediately appear.

Same issue here. Any workarounds? Tks

I tried the turbocharged solution but after several hours it stopped syncing again 😟

I'm experiencing this on a wide variety of devices. We're using AirWatch to manage over 600 iOS Devices in the field, Google Apps to handle the Cal.

Here is what I tried so far tried, So don't waste your time trying these:

-turn Calendar Sync OFF / On

-updating to 9.0.1

-updating to 9.0.2

-complete wipe and restore (iCloud)

-complete wipe and restore (iTunes)

-tested on the native Google Calendar App (Faster, but same results over a few hours)

Its clear that this is related to ActiveSync. I read that one of the features of iOS 9 in the Enterprise was "Improved calendar reliability for customers using Microsoft Exchange ActiveSync v16"

Could that be a lead on something to look into? I'm not an expert in Exchange but maybe someone could please provide some insights?

Why is this marked solved? Problem is still occurring.

So if this is Active Sync related, who do we look to for a fix? Microsoft, Apple, or Google?

According to this it's Apple.

Exchange ActiveSync Protocol Licensees provide the Exchange ActiveSync software that is used on the third-party devices. Microsoft does not write the Exchange ActiveSync code for the licensees’ devices or services. Microsoft licenses patents to Exchange ActiveSync licensees. These patents are Microsoft intellectual property. Additionally, Microsoft provides public access to the Exchange ActiveSync protocol documentation.

GoogleSync (Activesync) continues to work with 8.4 and Android

https://support.microsoft.com/en-us/kb/2563324

Hi Kent,

we have a High-Level Escalation Team here that specifically talks to Google Business Support and are intouch with Google Directly. I didn't get much details but they pretty much confirmed the core problem being in Google's Court for now. The only work around they offered was to use the Google Calendar App or the Google Gmail App until this gets sorted. And was told, "Google Made iOS-Apps are not hampered with any syncing issues that affect the native Apple iOS App.

I'm going to wait for more updates.. I've already triend those Apps with users and its opening up a whole other can of worms.

Btw today we're not only seeing Calendars out of sync, but Mail and Contacts as well.