ICal stops syncing with Exchange 2010

I have a few users with Macbooks, syncing iCal with the company server Exchange 2010. All of them work fine apart from one... I can setup the Exchange account as normal, and all events are correctly synced. After a few days, iCal stops syncing and I got a message "Go offline, revert to server, try again". At this point, the only workaround is to delete the account, and recreate it with the same settings... Then iCal works fine for a few days and again.
This server is working fine with iPhones, Android, Outlook 2011 (Mac), Outlook 2010 (Windows)...
Anyone facing the same issue ? Any idea ?

I did a hard reset and that didn't fix my issue so i wouldn't suggest doing a hard reset.
My environment:
Exchange 2010 SP1
Droid with FRG22D
I haven't been able to pinpoint the issue but it has to do with the request and response with provisioning between the devices and exchange. Nothing has changed but updating the phone to the latest patch.
I receive the following error:
RequestBody :
<?xml version="1.0" encoding="utf-8" ?>
<FolderSync xmlns="FolderHierarchy:">
<SyncKey>0</SyncKey>
</FolderSync>
AccessState :
Blocked
AccessStateReason :
Policy
ResponseHeader :
HTTP/1.1 449 Retry after sending a PROVISION command
MS-Server-ActiveSync: 14.1
ResponseBody :
[No XmlResponse]

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Droid frg22d update stops syncing with exchange 2010

We have exchange 2010 SP1 running. When some of the droid users received the 2.2 software build FRG22D it stops syncing with exchange. I have build FRG01B and it works fine, I hope they don't push FRG22D to my phone. HAs anyone else had this issue? Has Verizon recognized this issue. It is going to be major as more phones upgrade and run on Exchange 2010 SP1.

I did a hard reset and that didn't fix my issue so i wouldn't suggest doing a hard reset.
My environment:
Exchange 2010 SP1
Droid with FRG22D
I haven't been able to pinpoint the issue but it has to do with the request and response with provisioning between the devices and exchange. Nothing has changed but updating the phone to the latest patch.
I receive the following error:
RequestBody :
<?xml version="1.0" encoding="utf-8" ?>
<FolderSync xmlns="FolderHierarchy:">
<SyncKey>0</SyncKey>
</FolderSync>
AccessState :
Blocked
AccessStateReason :
Policy
ResponseHeader :
HTTP/1.1 449 Retry after sending a PROVISION command
MS-Server-ActiveSync: 14.1
ResponseBody :
[No XmlResponse]

Calendar fails to sync with Exchange 2010

I frequently encounter issues with Calendar (iCal) not synchronizing with Exchange 2010. I get the ! error triangle beside the account and it will attempt to "revert to server" or "try again" but ultimately failes. After several attempts, I finally got this message:
I am only assuming this is a persistent issue but not sure why all of a sudden my email address would return as invalid. Anyone else see this and is there a work-around?
Thanks

Hi and Welcome to the Community!
Can you expand on that please? As in, what exactly, tells you it doesn't sync anymore? Did you re-configure the Desktop Software? If so, what did that present? If not, well, you need to since you've changed your Desktop Organizer app...
Let us know.
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ICal stopped syncing with Google Calendar

My iCal recently stopped syncing with my Google Calendar.
Change: I decided to set up an application specific password (http://support.google.com/accounts/bin/answer.py?hl=en&answer=185833)
Action: Doing this made me enter the application specific password on my MacBook Air for my Gmail set up confirmation for email.
Result: When that happened everything was syncing fine; email & calendar.
The next morning when I tried to launch my calendar on my Air I received the error message that my Air could not access the Google Calendar. The password was incorrect.
Assumption: I needed to set aup an application specific password now for the iCal on my Air.
Action: I removed the calendar in iCal preferences and created an app specific password and tried to set up the calendar again using the app specific password from Google.
Result: Selected Account Type (Google) Email (google email) Password (app specific password)
Error Message: Server with Secure Communication Unavailable - Your calendar account isn't on a server that can recive your calendar information securely. If a server isn't secure, others may be able to view your calendar information. To continue searching for your account on servers that may not be secure, and then set up the account it's found, click continue.
Action: I went into my Google Calendar settings and made the calendar public.
Note: When I originally set up my calendar I didn't get this message or have to make my Google calendar public.
Question: Why am I getting this error message now?
Change: Account Settings: prompted me now to set this up as a CalDav account....?
What the heck?

the same is happening to me.
All my cals have been syncing just fine. Upgraded my iphone os5. upgraded lion on laptop. And for some reason, now i'm opening ical today and trying to edit, i am suddenly getting URL errors. Also i cannot find a way in the new ical (with lion) to unsubscribe from things.
My iphone seems to be updating ok as it's syncing from the google cal server... but if i want to add or edit anything to my google cals in ical, it's not letting me do anything.
Any ideas anyone ?

Calendar doesn't sync with exchange 2010

Calendar sync with exchange 2003 but after upgrade to exchange 2010 my Calendar doesn't sync anymore.

Hi and Welcome to the Community!
Can you expand on that please? As in, what exactly, tells you it doesn't sync anymore? Did you re-configure the Desktop Software? If so, what did that present? If not, well, you need to since you've changed your Desktop Organizer app...
Let us know.
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

ICal not syncing with Exchange calender in OS X 10.10.2

iCal is not syncing with an Exchange-based calendar with the OSX 10.10.2 update on my 2012 Macbook Air.
Any calendar events added since the software update are not replicated to the main Exchange account, nor are new events made in other calendar programs replicated back to iCal. This includes calendar events made on the Apple Calendar app on an iPhone 6/iOS 8.1. iCal shows events made before the software update, just none after. Google Apps-based calendars in iCal are not effected, only Exchange-based ones.
I have deleted and re-authorized the Exchange calendar in the Calendar applications on the Mac and the iPhone, and this problem still exists. My workaround is to abandon iCal and to use BusyCal 2 for OSX, which does sync with the Exchange-based calendar. BusyCal 2 does sync with iPhone Calendar, so the issue is specifically iCal in 10.10.2
1. Is anyone else experiencing this problem?
2. Does anyone have a potential solution?
Thanks in advance,
Wayan

Hey everyone, thanks to this thread, we now have a solution. Or at least it worked for me.
Clear Calendar Cache:
1. Go to system preferences and open internet accounts. Selected the Exchange account and turn off calendar.
2. Close iCal and any other calendar application you might have running
3. In Finder, go to HD/Users/User Name/Library/Calendars and delete the Calendar Cache files (may need to empty Recycle Bin)
4. Restart iCal, which will rebuild the caches
5. Turn on your Exchange calendar

ICal stopped syncing with iPhone

My iPhone has been blissfully syncing, as expected, until the last few days, when it no longer syncs with my iCal. New calendar items don't sync to the phone, and new items on my iPhone won't sync to iCal.
I have been running a third party application Busysync to sync with my Google calendar, and this has also stopped syncing from Google calendar to my main computer, but not from iCal to my Google calendar. I have been trying to get help with this from their forums, where a suggestion came up that recurring calendar items might be triggering problems within Google calendar and therefore Busysync, but even when I stop Busysync running, my iCal and iPhone still won't sync with each other.
I've attempted resetting my Sync history in iSync, but it makes no difference. This was a problem prior to updating to iTunes 9, and I was wondering if anyone else had been having problems with the last update of iTunes 8. Or is there another simple way of resetting things, as resetting the Sync history seems to do nothing...
Any suggestions?

I am having the same problem. My iPhone calendar was syncing to my iCloud and my Macbook Pro but then it stopped. Now I've added an iMac and can't get my phone to sync to either computer. It's not only annyoing but very bothersome when you add an appointment to your iPhone and it doesn't update to your iCalendar at home.

Calendar on ML stopped syncing with Exchange but...

Hi Community,
I use 5 Apple products:
- iMac at work
- iMac at home
- MacBook at work for travel
- iPhone
- iPad
(lucky me...)
The iMac and MacBook at work stopped syncing my calendar entries.
The iMac, iPhone and iPad do sync properly and show all my appointments, invites etc.
When I check my web based Office Outlook, the calendar is showing them as well.
I do notice that I always have a circle with an exclamation mark in a triangle next to my calendar so it seems it is having issues connecting to the server? (see image). Is there a way to test that connection?
IT department... yeah... "we don't support Mac".
I tried to remove the Calendar through the Calender Preference Pane and the System Preference pane and add them, but this didn't work.
I am confused to why 3 out of 5 devices sync perfectly and 2 out of 5 don't....
Any ideas?
Roland

gcr,
Go to Calendar>Preferences...>Accounts>Account Information, and delete/re-add your iCloud account information.

ICal not syncing with Exchange

When I get sent an invite for a new event, I get a notification on my iphone and I get a notification email. If I accept, the event only shows up on my iphone, not in iCal.
Also, I logged into me.com and my exchange calendars were not there at all and I couldn't figure out how to add them.
Any advice, folks? This must be a very common issue but I can't find an answer!
Cheers

Should note that I'm using mobile me calendar BETA.

Yearly recurring meeting created on iPhone breakes iCal sync with exchange

I encounter a reproducable bug with Snow Leopard 10.6.1's iCal stopping sync with Exchange 2007 SP1 (Update Rollup 7), as soon a i create a yearly recurring meeting on iPhone 3GS connected to same Exchange Server via Active Sync.
After creating this meeting, syncing in iCal is broken, reporting following error:
iCal[31968]: GetCalendarItem operation failed
iCal[31968]: error = Error Domain=CalExchangeErrorDomain Code=-11 UserInfo=0x117a06cc0 "iCal kann keine Ereignisse im Kalender „Kalender“ aktualisieren."
iCal[31968]: Queue operation failed
iCal will never get synced anymore, until this one meeting is deleted via iPhone, OWA or Outlook. Please note: E-Mail and contacts still sync without problems.
Can anyone having a similiar setup confirm this to be problem!?
Where can i "report" this officially to apple?
Used versions:
Mac OSX 10.6.1
iCal 4.0 (1362)
iPhone 3GS 3.1.2
Exchange 2007 SP1 Update Rollup 7
So everything up to date, except for exchange 2007 missing some fixes...
To better reproduce this, here's the procedure:
On iPhone create a new meeting, make it "whole day", set recurring to "weekly" and voila, next time you sync iCal it stops with exclamation mark!
After testing, delete the meeting, but make sure to delete ALL instances, otherwise syncing won't work anymore:-(

Hello all there,
i was strubbeling with the same problem, but i found 'a' solution.
Let's hope that apple would fix this in the next version of iCal.
If iCal is saying that it cannot be synced, and you found an error like this "error = Error Domain=CalExchangeErrorDomain Code=-11 UserInfo=...." in your console, try this (read carefully).
*What i have done.*
1. Get an pc with MS Windoos en MS outlook in your exchange network (yes really, you need it)
2. Open MS outlook (i used 2007).
3. Export your calender to a .pst backup file
4. Then navigate to "View > Current View" and hit "all events".
5. Select all events then delete them all
6. Import your backup file to the calender.
7. From step 3 to 6, they are waste of time.
*So... what you need to do*
01. Open iCal and remove your exchange account.
02. Get an pc with MS Windoos en MS outlook in your exchange network (yes really, you need it)
03. Open MS outlook (i used 2007).
04. Then navigate to "View > Current View" and hit "returning events".
05. Note all of your returning events in notepad (also events from the past).
+You can also delete these events from the past+
06. Now delete all these "returning events".
07. Press the send and recieve all button in outlook.
08. Grab a cup of coffee
09. Start iCal and re-setup your exchange account.
If your exchange account is syncing with iCal then you can recreate the returning events. If it isn't syncing try to remove some other data, but be shure that you have created a backup file.
In my case the error was in one of the returning events, but i have figured that out to delete group of events en try'd to sync again.
Please note that my 3G iPhone was syncing very good, at time of this problem.
This are the console error messages:
11/6/09 06 Nov 15:16:26 iCal[291] Couldn't find an NSTimeZone to match the SerializableTimeZone
11/6/09 06 Nov 15:16:26 iCal[291] WARNING: Failed to find TimeZone Identifier for Windows MeetingTimeZone: Casablanca
11/6/09 06 Nov 15:16:26 iCal[291] error = Error Domain=CalExchangeErrorDomain Code=-11 UserInfo=0x11a287ee0 "iCal can’t refresh events in the calendar “Calendar”."
My setup:
MS SMB 2008 with Exchange 2007 (full updated till 2009/11/06 - today)
iPhone 3G 3.0
Mac OSX 10.6.1
iCal 4.0 (1362)
So.... i hope that you can fix your problem with my post.
I will subscripe to this post for a while, so if you need some help; Post it!
Have a nice weekend!
Message was edited by: Ronald Veenbrink

ICal, Macbook Air, and Exchange 2010

I have a user whos iCal is not syncing with Exchange 2010. When creating a new event, it gives the message "iCal can't save the event "xxxx" to the Exchange server. The account "xxxx" currently can't be modified. To discard your changes and continue using the version of your calendars that's on the server, click Revert to Server. To save your changes on your computer until the problem is resolved, click Go Offline."
The user is on a 2011 13" Macbook Air, 1.86 GHz Core 2 Duo. Snow Leopard 10.6.7, iCal 4.0.4. Mail and Address Book sync fine. The calendar works fine from the users iPhone, Outlook Web Access, and Outlook 2011 on the computer.
I have tried deleting the account, deleting all caches, and recreating it, but it still doesn't work. I created the account on my Macbook and it works fine, no problems syncing over wired or wireless connections. Macbook is also on 10.6.7, iCal 4.0.4. So I was thinking it was an account issue. I created a new account on the Macbook Air, set up the exchange account in iCal, and I get the same problem as on the original account, no syncing.. I have everything set up exactly the same as on my Macbook, but the Macbook Air refuses to sync. This error only appears when an event created on the Macbook Air is in the calendar. It pulls events from the server fine, but once an event is created it refuses to cooperate.
Do Macbook Airs just not play nice with Exchange?

This is not an issue with the Macbook Air. I have had this same problem since upgrading to Lion. One solution suggested (from MacRumors.com forum reply) was to
1) Open iCal and go into the iCal Menu/Preferences. Go to Advanced tab and enable Time Zone Support. Close iCal
2) Open System Preferences and click on Date & Time. Click on Time Zone tab and enable the checkbox for auto detect time zone.
I did this several times without success before I finally got rid of the errors. I have been error free for 3 weeks, but today the error is back (with no apparent changes made by me). I'm still struggling to get rid of it now.

Problem with Exchange 2010, Q10 and attachment

Q10 & Exchange 2010; unable to download and forward attachment
Hi all,
i have a problem with Q10 phone, sync with Exchange 2010 with activesync (not BES) all seem ok but unable to download attach.
When press "download" didnt start. Unable also to forward same message but i think is a chainde problem.
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This is the only Q10 present in company for test so i cannot compare to others BB.
All other users connected to the exchaneg server have iphone & ipad no issue result. Email service seem ok also for desktop.
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Hi marcottt,
Could you provide more detail please so I can better assist?
Do you have this issue with all attachment types? If not, what type of attachment are you having this issue with and what size is the attachment?
What happens when you try to forward the message? Is any error received?
Does removing and re-adding the email account make any difference?
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-FS
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ICal still does not sync with exchange 2007 in Lion

Dear,
In Snow Leopard, iCal was not syncing with Exchange 2007. I read a lot of things on this and it all led to recurring events. Indeed, after deleting them, things started to work. But I cannot delete recurring events! I need them!
Seeing that there was soo much talk on this all over on apple, I assumed that Apple would fix it. Instead, all we're seeing is some enhanced UI.
Can somebody at Apple please make sure that this thing finally gets fixed? Really, how hard can it be, knowing that the hardware based i devices can sync without any trouble?
Just for extra information, so you know what direction to look for:
I have Windows SBS 2008 in Dutch language. Timezone is Brussels. Exchange 2007 and all updates.
The system is running a self signed certificate
Outlook works fine on the Mac. I don't want to use Outlook on the Mac but am forced to at the moment.
Mail/Addressbook sync fine. Only Outlook doesn't!
I did try deleting recurrent events and this worked for a day. Basically stopped working I think when I added again those recurring events.
There are some errors in the console:
21/07/11 11:42:36,563 iCal: Couldn't find an NSTimeZone to match the SerializableTimeZone
21/07/11 11:42:36,563 iCal: WARNING: Failed to find TimeZone Identifier for Windows MeetingTimeZone: (GMT+01:00) Amsterdam, Berlijn, Bern, Rome, Stockholm, Wenen
21/07/11 11:42:36,580 iCal: error = Error Domain=CalExchangeErrorDomain Code=-11 "iCal kan de activiteiten in de agenda 'Agenda' niet bijwerken." UserInfo=0x7fbe94adb8b0 {CalFailedOperationKey=<CalExchangeSyncFolderItemsOperation: 0x7fbe94102d40>, NSLocalizedDescription=iCal kan de activiteiten in de agenda 'Agenda' niet bijwerken., NSLocalizedFailureReason=De account 'Exchange' kan momenteel niet worden bijgewerkt.}
Please fix this,
Guido
Message was edited by: guido4096. Added error message

Hi all,
I do have exactly the same problem.
But I am adding a new flavor, but I can not understand it.
I've setup two Exchange calender connections. Both servers are inhouse. The setup of the Exchange servers are most likely the same.
But one works and one not! How could this be explained?
I like to express my deep disappointment about iCal and partly Apple Mail. It is unbelievable for me, that years after Apple's cooperation with Microsoft there are still such problems.
I like my Macbooks and I certainly have the absolutely full bandwidth of all Apple products in my household and companies. But I think I have to go back to Microsoft and Sony Laptops in the near future.
Although this kind of bugs are small one's, but the hurt constantly. Apple - please fix that.
Here just for the interested reader is my console error message:
3/15/12 11:51:29.819 AM iCal: error = Error Domain=CalExchangeErrorDomain Code=-11 "iCal can’t refresh events in the calendar “Kalender”." UserInfo=0x7f856d4bddb0 {CalFailedOperationKey=<CalExchangeSyncFolderItemsOperation: 0x7f856c5ca060>, NSLocalizedDescription=iCal can’t refresh events in the calendar “Kalender”., NSLocalizedFailureReason=The account "DR InfoDyn" currently can’t be refreshed.}

Exchange email not syncing with Outlook 2010 and Z10

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Thanks in advance,
Rajan

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Does SL Mail/iCal/Address Book work with Exchange 2010?

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