Hello, I've recently encountered an issue with end user that is using both iPhones and iPads. The issue reported-calendars don't consistently sync or may sync at one device-not both. Here are further details: Exchange Server 2010 Version: 14.01.0393.000 iPhone 4s/iPad 2-Both Apple devices are current. Thank you for your assistance.

Hi, Does this issue occur to all the users? How about checking the calendar via OWA? If things are fine on OWA, it means the calendar items are good on the users mailbox, you need to troubleshoot this issue from mobile syncing aspect. Thanks, Simon Wu Exchange Forum Support Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

Hi if its for particular user please follow below link may help you. http://support.apple.com/kb/TS2776Don't forget to mark helpful or answer connect me :- http://in.linkedin.com/in/satya11 http://facebook.com/satya.1000

Thank you. The issue only ocurs with two users. Both users have iPhone and iPad devices that sync to Exchange. I will examine the OWA to confirm the calendar items are good on the user's mailbox-please provide advice involving troubleshooting the mobile syncing aspect. Thank you!

We see more and more issues like this one. It could be cloud issue. This case collection may give more details: Calendar not syncing from iPhone 4S to Outlook 2010Bob Lin, MVP, MCSE & CNE Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.howtonetworking.com

We see more and more issues like this one. It could be cloud issue. This case collection may give more details: Calendar not syncing from iPhone 4S to Outlook 2010Bob Lin, MVP, MCSE & CNE Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.howtonetworking.com

May be inheritance disabled for those user ,please check through below steps . Open Active Directory Users and Computers. On the menu at the top of the console, click View > Advanced Features. Locate and right-click the mailbox account in the console, and then click Properties. Click the Security tab. Click Advanced. Make sure that the check box for "Include inheritable permissions from this object's parent" is selected.Don't forget to mark helpful or answer connect me :- http://in.linkedin.com/in/satya11 http://facebook.com/satya.1000

May be inheritance disabled for those user ,please check through below steps . Open Active Directory Users and Computers. On the menu at the top of the console, click View > Advanced Features. Locate and right-click the mailbox account in the console, and then click Properties. Click the Security tab. Click Advanced. Make sure that the check box for "Include inheritable permissions from this object's parent" is selected.Don't forget to mark helpful or answer connect me :- http://in.linkedin.com/in/satya11 http://facebook.com/satya.1000

Hi, Is there any update on this thread? Thanks, Simon Wu Exchange Forum Support Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com