Article ID: 927467 - View products that this article applies to.
When you use ActiveSync to synchronize a Microsoft Windows Mobile-based mobile device to Microsoft Exchange Server 2003, you receive the following error message:
0x85030027 -- The Exchange Server requires certificates to log on. Connect your device to your PC on the corporate network to obtain a certificate.
This problem occurs if the following conditions are true:
To resolve this problem, configure the Client certificates setting in the Iisadmpwd virtual directory to Ignore client certificates. To do this, follow these steps:
Visit our Windows Phone Forums
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(http://social.microsoft.com/Forums/en-US/category/windowsmobile/)for more helpful hints and ideas.
Article ID: 927467 - Last Review: November 10, 2011 - Revision: 2.1