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Microsoft ActiveSync 4.5 is the latest sync software release for Windows Mobile-powered devices. ActiveSync provides a great synchronization experience with Windows®-powered PCs and Microsoft Outlook right out of the box. Faster file transfer speed and photo sync via Outlook are only available for Windows Mobile 5.0 powered devices. Exchange ActiveSync is an Exchange synchronization protocol that's optimized to work together with high-latency and low-bandwidth networks. The protocol, based on HTTP and XML, lets mobile phones access an organization's information on a server that's running Microsoft Exchange. Overview of Exchange ActiveSync.
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Learn more-->Original KB number: 2579075
Symptoms
A user can't synchronize a Microsoft Exchange ActiveSync (EAS) device for the first time.
When this issue occurs, the following event is logged in the Application log in Event Viewer:
Cause
This issue can occur if the Owner Rights security principal doesn't have Full control permissions on the user account that's trying to synchronize the EAS device.
Resolution
To work around this issue, assign the Exchange Servers group the right to change permissions against
msExchActiveSyncDevices
objects. To do this, follow these steps:- Start Active Directory Users and Computers.
- Click View, and then click to enable Advanced Features.
- Right-click the object where you want to change the Exchange Server permissions, and then click Properties.NoteYou can change permissions against a user, an organizational unit, or a domain.
- On the Security tab, click Advanced.
- Click Add, type Exchange Servers, and then click OK.
- In the Apply to box, click Descendant msExchActiveSyncDevices objects.
- Under Permissions, click to enable Modify Permissions.
- Click OK three times.
More information
Microsoft Activesync Win7
The first time that a user tries to synchronize an EAS device, the Exchange Server tries to create a container of the type
msExchActiveSyncDevices
under the user object in Active Directory Domain Services (AD DS). The Exchange Server then tries to change permissions on the container.By default, the Exchange Server group has rights to create and delete
msExchActiveSyncDevices
objects. However, the Exchange Server group doesn't have rights to change permissions on msExchActiveSyncDevices
. Instead, the rights are inherited from the Owner Rights security principal. By default, the Owner Rights security principal has Full control permissions.If the permissions for the Owner Rights security principal are changed, the issue that's described in the 'Symptoms' section can occur. For example, this issue can occur if the Owner Rights security principal has read permissions on
msExchActiveSyncDevices
objects.The Troubleshoot ActiveSync with Exchange Server guided walkthrough helps troubleshoot the following issues:
- Unable to create a profile on the device
- Unable to connect to the server
- Mail issues
- Calendaring issues
- Delays on device/CAS performance
Microsoft Activesync Win7
For more information about the Owner Rights security principal in AD DS, see AD DS: Owner Rights.